Travel Reference
In-Depth Information
Long, continuous periods of exposure to high temperatures and insufficient fluid intake
can leave you vulnerable to heatstroke. Symptoms include feeling nauseous, minimal sweat-
ing and a high body temperature (above 39°C). In severe cases sweating may cease and the
skin can become flushed. Headaches and a lack of coordination may also occur, and the pa-
tient may be confused or aggressive. Eventually the victim will become delirious and/or suf-
fer convulsions. Evacuation to a hospital is essential for heatstroke sufferers. While waiting
for evacuation get the patient out of the sun, remove his or her clothing, cover them with
wet clothing or a wet sheet or towel, then fan them continuously. Also administer fluids if
they are conscious.
River Crossings
Where & When
Most rivers and major streams are bridged at key crossing points, while smaller streams usu-
ally only require an ankle-deep wade to reach the other side. However, it is essential to care-
fully consider all but the most short and shallow of crossings. What looks like a good cross-
ing point might actually conceal a deeper channel: even knee-deep water can often be too
difficult to cross without the mutual support of several people. Also, if you can't keep pace
with a floating stick while walking next to the river, this is a good indication that the river is
flowing too fast for you to cross.
During and immediately after heavy rain is a particularly dangerous time to ford. It
doesn't take long - sometimes less than an hour - to turn a mountain creek into an impass-
able torrent of white water.
If you are not certain you can cross a river or stream safely, check your map for a safe al-
ternate route where there is a bridge, take shelter and wait, or head back to the last hut or
camp and sit it out. Remember, you do
not
have to cross that river:
if in doubt, stay out.
Streams and rivers rise quickly, but return to their normal levels almost as fast. If you wait a
day, or even an afternoon, the water will often subside enough for you to ford safely.
How to Cross
If you decide that it is safe to cross, look for an area where the river is braided into several
shallow channels, or where the water is flowing over an even riverbed. Avoid large boulders
and uneven areas of the riverbed. Cross the river at an angle moving with the current.
