About 72 Hours Season 1, Episode 1 :

When three teams composed of three strangers are dropped into the icy blue waters of the Yasawa Islands, their survival skills are put to the test as they encounter scorching temperatures and rough waters while attempting to locate a briefcase full of cash in just 72 hours. All they have to accompany them in their quest for $100,000 are their teammates, the clothes on their backs, a GPS and one bottle of water.