Shelters provide safety and comfort from heat and cold, and well as from physical threats like the sun, rain, snow, sand or animals. Shelters should be found or constructed away from potentially dangerous areas such as flood zones, lightning strike zones, avalanche areas, and on pathways. While there should generally be insulation, be sure there is adequate ventilation as well. If you don’t carry provisions for this purpose, you’d be surprised what materials at hand can do in a pinch. The following shelters may open your eyes to some possibilities.