On the second morning, Elias hears the distant hum of a Search and Rescue helicopter. He uses a small signal mirror—a tool he always keeps in his vest—to flash sunlight toward the aircraft. Because he stayed with his vehicle and managed his internal "water tank" by staying cool, he is rescued with only moderate dehydration.

Instead of staying inside the metal oven of the truck, Elias uses a tarp and the truck's frame to create a "desert lean-to." He digs a shallow trench in the shade beneath the tarp; the earth a few inches down is significantly cooler than the surface. By staying still and keeping his clothes on to reduce sweat evaporation, he preserves his body’s moisture. Priority 2: Water Management

Long sleeves and pants protect your skin from the sun and slow down sweat evaporation.