More info Carry lots of water and really hope you don't run out. More info Wear long sleeved and long pants. The poor man scratches a lot. Insect Repellent - in foil packets. Perfect for field use Sunscreen More of a high altitude issue but sunburn is never good.
More info Consider using small travel bottles.
Sun Screen - SPF in foil packets. GPS Not really required, but sure is a useful adjunct for land navigation. With selective availability turned off, I routinely see accuracy down to 11 feet. More info Not a poor man's tool. Garmin GPS 12 - Fast, accurate, powerful.