Important supplies include a topo- graphic map, a compass, a firstaid kit, matches, a knife, some food, plenty of water, sun screen, insect repellent, a backpack, a flashlight, rain gear, rope, and sunglasses. In cold climates take plenty of warm clothing. In hot climates take salt tablets. Other useful items include a tent, an inflatable raft, fishing gear, and a gun if you are in a hostile area.