Imagine you are on a boat traveling south along Florida’s east coast. A brief but violent storm hits and your boat sinks. You manage to swim to shore. Exhausted from fighting with the sea and believing you are now safe, you fall asleep on the beach.

When you wake up, you realize your ordeal has just begun.

The hot Florida sun has already burned your skin. You are covered with bites from sand fleas and mosquitoes. You stumble inland to find undeveloped scrubland as far as the eye can see, and no source of fresh water in sight.