Gerber Bear Grylls

The hatchet, flintstone, survival bracelet, emergency whistle and much more were other aids he used on his survival expeditions. Gryll's adventures often pushed him to the limits of what was possible without food and water. Drinking his own urine, being exposed in the wilderness, living with the cold, looking for the best opportunities, among other things, were constellations he had to defy. To be able to survive in extreme life situations was what he wanted to prove with his expeditions.