In the desert, you're much more likely to find water in rocky areas such as this one in the Arizona Sky Islands.
Image Credit: DCL
Using his reserve parachute and an improvised buggy, Bear Grylls tries to reserve energy and avoid unnecessary dehydration by using the wind to propel him across a dry lake bed in Arizona.
Image Credit: DCL
In Arizona, Bear Grylls climbs to the highest point possible, his best chance of being spotted by light aircraft or even people.
Image Credit: DCL
The human body can go three weeks without food, but in a desert such as the Arizona Skylands, you won't last more than three days without water.
Image Credit: DCL
With no foothold available, Bear Grylls' arms got quite the workout when he used a vine in order to descend from the canopy to the ground while in the Borneo jungle.
Image Credit: DCL
As Bear Grylls demonstrated in Borneo, bamboo is great for raft building; it's buoyant because of the air in all of its chambers.
Image Credit: DCL
The jungle floor is alive with animals and bugs. Big ones. And mud, too.
Image Credit: DCL
In Borneo, Bear Grylls heads downstream along the river. Why downstream? Because it "should eventually lead to a bigger river and then to civilization."
Image Credit: DCL
This 40-foot waterfall made Bear Grylls' decent to the jungle's floor a bit tricker, but in his words, at least he "had a wash."
Image Credit: DCL
In Borneo, Bear Grylls grills a snake for dinner — but not before the non-venomous snake had bitten his hand.
Image Credit: DCL
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