The all important water bottle

January 30th, 2008

Water Bottles

If you refill from eco-friendly jerry cans rather than plastic mineral water bottles this is much easier if the neck of the water bottle is wide as with a Nalgene type water bottle. These also come with ‘feeder’ tops so that you can slug as you walk without looking like a baby that’s spilt his drink down his front.

Sigg type bottles have narrow necks and dent easily though they look good. The narrow neck makes refilling a pain. Avoid at all costs imitation Siggs as the threads strip and they quickly become useless. One litre Nalgenes and other secure wide topped plastic bottles are probably the best bottles.

In Egypt you can very cheaply buy a soft insulated carrier that will take any kind of bottle including a Nalgene. Or you could make your own insulator out of a strip of carrymat glued to the bottle. Leave the water out over night and it will, with the insulated cover remain deliciously cool all day.

The Bedouin have improved on their old leaky guerba that used to drip water and by evaporation remain cool. They stitch a quilt cover around a cleaned out oil container and soak it in water. The evaporation keeps the water cool even in 40 degree heat.

The right sleeping bag for the desert

January 29th, 2008

The desert can get mighty cold in winter- down to 0 degrees at times, but more likely in the + 5 to +12 degree Celsius range. Contrast this with the sunny day and the usual desert breeze and you’ll be cold without a decent bag.

Even in May, when daytime temperatures were over 40 degrees Celsius I didn’t find the night particularly warm. Having a thermarest is nice but strangely it doesn’t seem to matter as much as when sleeping on damp earth, maybe because the sand is dry. Any kind of mattress works, or none, though obviously you’ll be a bit warmer if raised above the ground.

Get a four season bag- down or artificial- that is guaranteed down to –10 degrees or even if you are a cool bod, down to -15. Manufaturers are usually over optimistic and do their rating with the mummy hood fully up and drawn around the face. If you fancy sleeping a bit more freely get a warmer bag- but always with a full length zip so you can regulate it if it’s too hot. Go for a recognised brand such as Rab, Ajungilak or Black’s.

Just how much water do you need?

January 28th, 2008

Just how much water does a human need?

We read of desert runners drinking ten litres of water in a twelve hour period. I did it once and the next day I was vomiting and feeling very poorly. If you suddenly start imbibing massive amounts of liquid you will feel disoriented and ill and not up for much exploring. Also, when you read of massive water intake it is during the summer. Which we never visit the Sahara during. In the winter you need much less water.

More importantly you must drink it at the optimum time for absorption. This is known intuitively by the Bedouin. They don’t sip sip sip all day long. They drink in the early morning and in the evening and that’s that. The rest of the time they down countless cups of tea.

Tea is the secret rocket fuel of the desert. Made with lots of sugar it resets the body’s dehydration meter. In simple terms, if you drink unadulterated water it passes rapidly through the system. If you also drink tea the water you also drink gets processed into deep rehydration rather than for mere cooling activity.

Sipping a bit as you walk is fine- but just to keep your mouth and lips from drying out. Swilling the water around before swallowing it works well.

The water you drink you want to count. You don’t want it to be burnt off instantly as sweat. So you must remain cool, do not over exert yourself. Watch how the Bedouin cover up and avoid too much sun. I’ve never seen a desert dweller in shorts and a T-shirt. The only time a Bedouin would ever strip off is maybe when they’re digging out a well in summer.

We allow 3 litres a day for drinking in the first few days as you adjust to a dry atmosphere. The temperatures at night can be as low as 5 degrees C. During the day it may reach 25-27 degrees. Often there is a cooling breeze. As long as you not over exerting yourself you will not dehydrate. In fact I’ve seen people arrive who are already dehydrated (by lifestyle and alcohol intake) who actually rehydrate in the desert on 3 litres a day. This does not include cooking and tea for which we allow another 2 litres per person. The 8th Army, who fought in the Sahara throughout the summer during WW2 allowed 3 litres per man for cooking, drinking and tea.

Remember- if you’re sweating in the desert in winter you are doing something wrong. If you’re not sweating you don’t need much more water than you usually drink at home during a moderate summer.

How to be an Explorer

January 27th, 2008

How to be an Explorer
by Robert Twigger

American explorer Hiram Bingham discovered Machu Picchu in the Andes in 1911. Travellers started making their way there in the 1950s and 60s. Now every tourist who goes to Peru gets dragged up the mountain to view the extraordinary Inca ruins. Exploration is dead, killed by tourism. QED. Except not quite. Stephens was lead to Machu Picchu by the knowledge of local Indians. They had always known of the ancient temples. Exploration is eurocentric. What helped kill our belief in its relevance was our growing appreciation of indigenous peoples. Once we saw native knowledge as the equal of our own, the idea of being ‘first’ to visit some spot on the earth ceased to have meaning if people were already there.

Places without a local population: Antarctica and the highest mountains became the sole focus of ‘real’ exploration.

And then the scientists moved in. If relativism made a nonsense of being ‘first’, the scientists could still be ‘first’ – the first to make some dull and irrelevant observation in the tree canopy. Don’t get me wrong- science is great in the right place- but released in the wild, scientists become arrogant beyond belief, only too eager to brand all exploration ‘trivial’ except their own brand of career enhancing fact scrabbling. The one benefit of the attempt of science to hijack exploration is that the majority of scientists are too cowardly and weedy to get out there except on snow mobiles or in Landrovers. This is their great weakness obvious to all in the current DIY exploration movement.

I grew up imbibing the idea that the world was all explored. It’s encouraged by watching too much television. In one evening you can easily get the impression you’ve gone right round the globe. Or even twice, if they’re repeating Michael Palin. When I finally did start travelling I was always comparing it to television- I remember thinking in Borneo this jungle isn’t half as noisy as the one I saw on David Attenborough. Of course, when they record for TV, they enhance the sound to make it sound better than reality.

To call yourself a tourist is fairly demeaning, even if true. One up is a traveller, firmly distinguished from the kind that live in laybys in old transit vans. Then there is the crème de crème of getting out and about: the explorer.

Being a professional explorer these days is about having the right kit and lots of it. It’s about sponsorship and media interest. It’s about a ‘first’, either a new route, or an old route done faster. The things you see along the way are of secondary importance, now that we have sat photos and magnetic resonance scans. Exploration has become a variation of sport- primarily about an entertaining form of primal race under extreme conditions. It’s no accident that the forerunners of this athletic model of exploration- Scott and Amundsen were copied for a recent BBC series purporting to rerun the race under ‘fairer’ conditions. A sort of Chariots of Ice if you like.

It’s interesting, too, that Britain’s foremost professional explorer- the mighty Ranulph Fiennes- has actually become a professional athlete- of his own variety- running marathons on every continent.

But all these developments: athletic exploration, scientism and indigenous knowledge invalidating European discovery, obscure the real facts: there are vast parts of the world that very very few people have ever visited, or will ever visit. There are many places, in jungles, deserts and mountainous regions where you can be the first visitor to that precise spot. And if not the first person, the first one to write anything about that place and take a photograph. Observe it, look at it walk through it. That’s exploration.

I’ve recently been to the Gilf Kebir, an area the size of Switzerland in south-west Egypt with no water at all. Tourists go there with military escorts- it takes a week of desert travelling so not that many. However, imagine tourists going to Switzerland and only visiting Berne and Geneva and then scooting back home. That’s what the Gilf is like- the tour groups visit two sites and then leave. We stayed longer- on my last trip we discovered an ancient burial site and a new route onto a plateau unmarked with any tracks- we were the first Europeans here for sure, and possibly the first people since the rainy period in the Sahara of 7000 years ago.

This example is replicated throughout the world. In Borneo I went to a village on the Kalimantan/Sabah border. Tourists had just started visiting- a few plane loads every year. The last anthropologist had just left- it was the dawn of a new era. But when I started making longer and longer trips with local Lundaiya hunters I began to find myself beyond the area that tourists, on their tight schedules, or anthropologists, with their village based agendas, visited. I discovered a line of menhirs stretching right across the tribal territory and into Kalimantan. No one had written about these before, or photographed them. It was incredibly exciting. Suddenly I was an explorer.

Just because we’ve flown over everywhere in an airbus or a jumbo jet doesn’t mean we’ve explored it. Just because tourists queue up to gasp their lungs out on Killimanjaro doesn’t mean there isn’t exploring to do on the other side of the mountain.

Actually it’s the growth in adventure tourism that has sparked the recent surge in DIY exploration. Adventure tourism is still tourism but it happens in remote enough places that you suddenly see the potential. You start asking the guides, “Has anyone climbed that mountain? What’s through there?” Where does this river start?”

Tim Cope, a young Australian explorer, first experienced the unexplored possibilities of Siberia while on a bicycle trip across Russia. He then went back and made the first descent of the Yenisey river in Siberia, all 4500 km of it, in a renovated rowing boat he was given for free.

I started making jungle expeditions in the late 1990s to try and find and film the world’s longest snake. These trips, all over Malaysia and Indonesia taught me that the biggest lie in geography lessons is that the world is all explored. The world is not a static place, politics, economics and natural forces change it all the time, close some areas and open up others. Even global warming has changed the nature of arctic exploration, making daring forays by sailboat along the North West passage more achievable.

In 2005 a new cave so vast two helicopters could fly through was discovered deep in the Venezualan jungle. In it a new species of ‘poison dart’ frog was also discovered. If you extend exploration to include bio-exploring we are still in the infancy of the subject. Prominent writer on biodiversity, E.O. Wilson, believes 9/10 of a potential 8,000,000 species of insect, remain to be discovered.

Retracing an old explorer’s route is another form of exploration- by noting similarities and differences you explore how the world has changed over time. From 2002 to 2004 I made a three season trip through northern Canada, following exactly the 1793 route of an explorer, Alexander Mackenzie. At one point, after lugging our birchbark canoe over beaver dams and rapids we arrived at a place that was absolutely unchanged since his description two hundred years earlier. There was even a mile long logjam just as he had written in his journal. It was greatly satisfying to know that two hundred years hence the place, guarded by mountains and steep impenetrable bush, would be unchanged. Just one visit every two hundred years- that was enough.

Even being somewhere ten years after the last visitors feels like exploration. On the Canada trip I found a paddle left behind by an expedition that been made in the previous decade. It’s only finding recent rubbish that makes it feel like tourism.

Exploration is about recording an environment with fresh eyes- either because no one has been there for a long time, or because you have a different perspective. Recently I started micro-exploring England in a tiny kayak along its narrowest streams and least visited rivers, places where no other boats can go. Suddenly the utterly familiar becomes a lost world of wildlife and new discoveries.

DIY exploration is fuelled by cheap flights and cheap gear. Getting to the zone of exploration used to be the biggest cost- now it’s negligible. Gear used to be highly specialised with a price tag to match. Now that every cub scout wants a four season box baffle sleeping bag they are relatively cheap- the price hasn’t really changed in twenty years.

Secondhand gear is even cheaper: jungle explorer Tahir Shah buys all his Zodiac inflatables from Loot classified ads and feeds his jungle porters on pot noodles. DIY exploration is about using what works rather than what the gear companies want to sell you.

The only barrier to taking part in the DIY exploration movement is psychological: have you the courage, initiative and knowledge to get out there and do some exploring?

One of the first things you need is a good alibi- an excuse to be there. Tourists have the lame excuse of wanting to see something that has been photographed a thousand times before. Travellers want to see something they saw in National Geographic and explorers want to photograph something that will appear in next year’s National Geographic.

The right alibi must be sufficiently exciting to inspire you and get you into new country or old country in a new way. For my desert exploring I settled on the idea of searching for Lost Oases. It had a mythic power as well as practical consequences. I was able to investigate all the competing theories about myths for Lost Oases while visiting the supposed sites myself.

But the real exploring is always on the back of the alibi. I found stone age tools, WWII trucks, intact pottery urns and ‘water mountains’ where ancient caravans stored their water. I found long lost camel trails, engraved rock art, camel saddles left behind by Tebu tribesmen a hundred years ago, a ancient hunters cave beside a flint knapping station.

To be fair- it took a long time to get to base camp, so to speak. I have just spent the last two years living in Egypt making vehicle, camel and walking expeditions into all parts of the Sahara desert. It took ages to work out the basics. Places to get fuel and wood, where checkpoints were, who to trust, what maps were reliable. Where to start.

It was a largely psychological problem: I didn’t know where to start and there was no one there to help me. Cars were expensive and even when I got one suitable for the desert, it was hard to find people who had enough time and the inclination to visit the really remote places. Camels were another option but I had heard horror stories of unknowing foreigners being ripped off by crafty Egyptian camel men. I slowly accumulated information and experience but I had yet to make a journey that felt like exploration. For me that feeling comes from cracking some travel problem that has kept others out.

A few years before, crossing the Rocky Mountains, I found myself in a place that had defeated several expeditions before ours. The problem was the intense cold of the glacial streams we needed to wade through up to eight hours a day whilst manhandling a heavy canoe. As I had no one to tell me what to do I went back to my limited experience of fishing. Wetsuits were too bulky to carry but stocking-foot chest waders weren’t- and being made in China, my favourite country, they were exceedingly cheap. Wading all day in the icy water was no longer a problem. A very simple solution but without it the expedition might have failed.

With the desert the problem was how to carry water without the encumbrance, limitations and costs imposed by cars and camels. I went back to my experience of dragging a canoe through the wilderness. Why not drag a sledge through the sand? No need for expensive cars or difficult camels. The friction would be too great for a sledge but a wheeled vehicle, I tentatively named, in a moment of appropriate silliness, the Advanced Recreational Sand Explorer, or more simply ‘the trolley’, might work.

Being in Cairo it was very easy and cheap (£28) to have the sturdy prototype built. By now I had discovered that other hardy souls were joining me in using the wheeled cart as a DIY desert exploration device. In 2006 Lucas Trihey crossed Australia’s Simpson desert in 17 days using an aluminium cart, while two Germans traipsed through the Gobi tugging a hi-tech trolley with mountain bike wheels.

The ‘trolley’ was created in the true spirit of DIY exploration, the same spirit that has carried Jason Lewis around the globe by peddle powered boat and John Harrison in a folding canoe up unexplored tributaries in Brazil. Go back to basics and try anything that looks like it might work. Instead of killing your enthusiasm with endless phone calls to potential sponsors, reduce your costs with an ingenious bit of homemade kit.

The ‘trolley’ got me out into the desert. Two weeks worth of water and supplies for a team of two could be carried on it. At last I felt I was really exploring, going where there were no vehicle or camel tracks and filling in the gaps in the old 1941 survey maps. After making several trips I met Arita Baaijens, Holland’s leading desert explorer, a female Thesiger if ever there was one, though rather better looking. She had made long solo camel trips through Egypt and Sudan before the advent of GPS. Talking to her was another turning point. I began to see that camel journeys were not as expensive or difficult as I had earlier imagined. Arita introduced me to Bedouin camel owners and I began to learn about this most traditional way of exploring the desert.

I knew there was huge groundswell of people eager to take part in real exploration when I wrote an article about searching for new examples of rock art in the desert- I was inundated with requests to join the expedition.

But instead of just another touristic holiday, I had a vision of being able to give people the basic knowledge and experience, while on a real expedition, to be able to do it later by themselves. I had reported for magazines on adventure tourist trips and I saw how the ‘clients’ were made dependent on the tour leader and his assistants. They were kept out of the kitchen on spurious ‘insurance’ grounds (really because they got in the way.). They were denied the chance to help pack vehicles because that would slow things up. But people want to learn. On one trip I accompanied an Italian woman showed me a lone GPS point she’d copied into her notebook. Never mind that she’d never visit that spot again. For her it was a proof that she was involved in a real expedition.

I saw that the skills I had learned over the last few years could easily be taught to someone directly. It was no good learning about the desert from books- I’d done that- you had to experience it. From this came the idea of The Explorer School. Research into team learning has shown you learn fastest on the job and not in the classroom dissecting the lesson before and after the experience. At the Explorer School we’ve put all the core skills you need to make a desert expedition by camel into a two week journey of real exploration in one of the least frequented parts of the Egyptian Sahara. You’ll learn navigation by night and day, survival skills, water management and expedition planning. From our Bedouin teachers you’ll master skills in packing, loading and managing camels, cooking bread in hot sand, reading tracks and avoiding the worst effects of sandstorms. Where we go the maps are just white spaces so we’ll teach you to make your own. Every expedition follows a new route so you’ll be going somewhere you, me and even the Bedouin have not been to before.

Most people with jobs do not have the time to be able to do the groundwork, the reconnaissance. So they opt for tourism- which is a pity. But at The Explorer School we’ve provided a new option by condensing and focusing all the skills you will need to become yourself a real explorer.

People cruising into their 40s might recall the best television program ever, an anti-TV show of the 1970s made by kids called “Why don’t you switch off your television set and go and do something less boring instead.” That ethic is my belief: learn enough to stop consuming experiences and go out and produce them for yourself.

The future of DIY exploration has never looked brighter. The collapse of communism has left most of the world open, with a little ingenuity, to any would-be explorer. New materials and hybrid thinking are generating new ideas all the time. The mega-transect concept pioneered by Michael Fay, where the object is to log wildlife along a journey that aims to avoid all human settlement, has resulted in some interesting new journeys. Satellite phones have brought previously expensive communications capabilty to anyone with £500 to spare. Weird new vehicles can take you to places previously thought inaccessible. Super wide tyres have been fitted to a moutainbike for an attempt at reaching the South Pole, powered hang gliders have been used to ferry gear over rapids in the upper Nile and ultralight packrafts have opened up new vistas in mountain range and lake exploration. There is also a growing appreciation of the transport skills of indigenous people. Long journeys are waiting to be made by explorers using only traditional means- be it seal skin umiak or claw sailed catamaran. The internet has become a resource for non-corporate sponsorship and the cheap cost of video has lead to new ways of publicising your travels- even without the help of National Geographic.

Adventure tourism has its own logic for keeping the punter ignorant- they’ll come back again and again, ignorant bunnies lining up for another thrill ride. Isn’t it better to be someone we maybe read or hear about, a person who has made their own expedition somewhere on this vast and undervisited planet?

The Lost Army of Cambyses

January 25th, 2008

Somewhere in the Western desert supposedly lies the remains of a 50,000 strong Persian army. Here is the story behind it:

In 525 BC Cambyses II invaded Egypt in a bad mood. Earlier, he had demanded that a daughter of the Pharaoh Amasis be his wife. He was sent the far less valuable daughter of the Pharaoh’s enemy and predecessor Apries. This angered him enough to invade, which he had probably intended all along anyway.

What little we know about Cambyses from Herodotus and Babylonian fragments indicates a cruel and chaotic character, frequently drunk. He killed his brother Smerdis before invading Egypt simply as a precaution against usurption while away on his campaign. It was a wise but not sufficient precaution- while he was away the Magian Gautmata impersonated Smerdis and was accepted throughout Asia as ruler of Iran.

Cambyses also killed his sister after a disagreement over a lettuce. To compound his crimes with incest, she also happened to be his other wife. His wife/ sister were eating dinner with him. She asked if he preferred his lettuce with or without its leaves. Cambyses said he preferred it stripped, whereupon his wife/sister said he had treated the house of his father Cyrus as he had the lettuce. Enraged, Cambyses kicked her in the stomach and being pregnant she had a miscarriage and died.

It is not certain if Cambyses came by chariot to Egypt or camel. If camel, it could be his invasion that marked their introduction to Egypt. As he had co-opted Arab soldiers to water and provision his invasion it is likely he brought with him at least some of the first camels.

There were no camels before this time. Tutankamun’s scarab pectoral was probably recovered by a donkey Caravan heading towards Siwa. Remains of donkey roads in the Western desert have been found by Carlo Bergmann, south west of Dakhla Oasis leading as far as the Gilf Kebir so it is not inconceivable that Cambyses, if unsure of the camels his Arabs were riding, was mounted on an ass.

Cambyses defeated the Egyptian army of Amasis’ son, Psammetichus III, and though he adopted the costume and actions of the Pharaohs he is recorded as being “in great contempt of them’. Eager for more conquests Cambyses proceeded up the Nile with his eye on Kush, Napata and the Land of Punt, Ethiopia. He came unstuck before he reached Punt when he tried to invade Nubia and was defeated by Nastesen the Nubian king. An inscription in Napata (now in the Berlin Museum) reads how he defeated ‘Kambasuden’ and took all his ships.

It was largely the terrain that defeated them. At first reduced to eating pack animals and then grass, an order was finally given that one soldier in ten should be killed and eaten. This was too much even for Cambyses and he ordered the failed expedition return to Thebes.

Cambyses was mad with anger at the Nubians but took out his frustration on the Priests of the Oracle of Amun Ra at Siwa. They refused to agree to his sudden and despotic claim to rule Egypt. Siwa was a long way from the Nile and the Priests were used to their freedom.

Cambyses had a strategic mind but was wildly optimistic and ill prepared. His disagreement with the high Priests of the Oracle led to the dispatch of his famous Lost Army. Instead of sending them by River and Sea he sent them the long, and to his mind, cunning, way round through the desert.

The force sent to conquer the Siwans started from the Nile at Thebes and proceeded to Kharga, a journey then of seven days. There mission was to seize the people of Siwa, enslave them, and burn the Oracle.

Herodotus records that they left ‘The Oasis’, which was Kharga, 50,000 strong but were lost somewhere in the great sand sea. He reports a tradition of the Siwans that the army were buried in a sand storm just south-east of Siwa, probably in the uppermost part of the Sand sea in the proximity of the oases of Sitra and Bahrein- which were occupied at the time and even today contain the remains of tombs- but not of 50,000 men.

Cambyses, if he did send 50,000 men into the desert, sent them to their death through lack of water if anything. Such an army would need 8,000 gallons of water a day even in winter. There could be no question of a prolonged desert journey unless the army was very strung out indeed. It is more likely he sent a smaller force which conceivably could well have perished trying to go from Farafra to Siwa via the old route from Ain Della to Sitra oasis.

When he heard of their failure Cambyses was supposed to have been so enraged that he executed an Apis Bull at Memphis, which was a mighty insult to the cow worshipping Egyptians. Later accounts, based on recently found inscriptions suggest this was mere propaganda designed to rally support against Persian rule. In any case it seems that around this time, 530 BC, Cambyses went mad and soon after died of gangrene of the thigh. Another oracle, in Buto in the Nile Delta predicted this death. He had no sons or daughters.

Guessing the fate of Cambyses Lost Army remains a popular pastime for desert travellers. Some have doubted Herodotus and put the destination of the Lost Army as far apart as Dakhla or even Asyut. Almasy spent a good deal of time looking in the Great Sand Sea but died before he found anything. Every few decades a new expedition is mounted. Recent research has tended to confirm the original story told to Herodotus.

In 2000 Helwan university geology department found arrow and spear remains in the Great Sand Sea. Excited by this various archeologists and geologists including Gail McKinnon and Tom Brown have searched for Cambyses army and found little apart from what are almost certainly Roman army remains. Brown has plotted a possible route but has downgraded the army to a more likely 10,000. The hunt continues.

Desert walking hints

January 25th, 2008

A Classy Compass

Those brought up on the Silva type compass might be surprised to discover that there are far superior machines out there to aid desert navigators. Typically handheld yachting compasses are easier to use and more accurate. The silva is great for transferring a bearing from a route on a map but when it comes to sighting up, even if you stick both fingers out along each edge it is possible to make errors of up to five degrees. Whilst this is acceptable when orienteering where there will be geographical features to cross reference from off the map, this is not accurate enough for the most demanding tasks of the desert. The Plastimo Iris 50 is a great yachting compass that hangs around the neck and can be read even at night. It is wonderfully accurate and very easy to use.

Walking on a Bearing

In the desert you may walk on the same bearing for several days. To do this accurately you need to sight up on a distant feature such as a dune or mountain and then walk towards it. You can also take a back sight of the landmark you have just left in order to check you aren’t going off course. If you need to go around obstacles simply note the number of paces you need to deviate left or right as either a plus or minus figure. At the next landmark you can calculate the total of this and work out how much you need to correct your course.

Finding your way in the Sahara by using the stars

In the northern latitudes the Great Bear points to the pole star and makes navigation at night easy – as long as there is no cloud. In the Sahara the Great bear doesn’t rise above the horizon until very late at night so other methods are called for.

Find the ‘M’ shaped constellation Cassiopeia and track down the second stroke of the ‘M’. Make a slight bend to the right and you will be at the Pole star. Check after twenty minutes- it will be the only star that hasn’t moved.

To walk on a star bearing simply find the pole star and then turn in the direction you want to walk. Look for a star above the direction you want to go in. After twenty minutes, find the pole star again, turn the same rotational distance and find a new star to follow.

To read the time of night watch how Cassiopeia and the Great Bear rotate around the Pole Star like the hands of giant clock.

Finding your position without a GPS

If you have a sextant you can use this, with tables, to calculate both latitude and longitude. Without a sextant it becomes a little more tricky.

If you sight up along a stick to the pole star and record the angle the stick makes with the ground that will be your latitude more or less. To find your longitude requires at least some knowledge of clock time and sunrise times. If you know the sunrise time at a location whose longitude you also know (such as Cairo or London) on whose Latitude you more or less share, you can calculate your position by the difference in times between the two sunrises. Every minute of difference is equivalent to be about 100km on the ground.

More boot yarns

Boots can be the deciding factor between fun and torment on a desert journey. Though sandals are best probably for hardened feet, they are really better suited as the back up to a pair of reliable boots. Bedouin walk in sandals and nylon socks, or no socks if it is hot- but our feet seem to be made of softer stuff.

A good roomy boot with two pairs of wool socks is my preference- but then I am an inveterate sufferer from blisters if I stray from this standard. Tougher folk survive with one pair of socks- but the boot must be worn in first- the desert is no place to try out new boots.

Desert boots- meaning suede uppers and ordinary boot soles allow a lot of moisture to escape- and it is moisture that causes blisters. Army types prefer the Meindl Desert Fox- which in practice is an excellent boot.

Brasher boots I have observed are good for a day or two but are cut too narrow and unforgiving for many days walking. Trainers admit too much sand and also allow sand into the lining which reduces the shoe size and can be a real killer.

Walking on sand

Walking on sand is tougher than walking across a springy moor in the UK. Sand can get in the boot and cause nasty rubbing- though with a sewn in tongue this is unlikely. Sand gives, a bit, but it allows of a repetitive walking action that seems to speed up blister formation and tire the feet rather more than walking on a more forgiving surface. If you walk 10 km on sand it will feel further- especially after several days of such walking.

Dakhla expedition group

January 24th, 2008

Dakhla Expedition Group
Confluence point N25 E28