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The Race to Find the World's Biggest Underwater Caves
As Stephen Bogaerts and Robbie Schmittner explore the 100-mile-long Sac Actun underwater cave, they control their breathing so that they use 1/4 as much oxygen as a novice. They trace their path with a nylon rope they unspool behind them; lose the cord and they're goners.
As Stephen Bogaerts and Robbie Schmittner explore the 100-mile-long Sac Actun underwater cave, they control their breathing so that they use 1/4 as much oxygen as a novice. They trace their path with a nylon rope they unspool behind them; lose the cord and they're goners.
Source: Discover Magazine
Posted on: Monday, Apr 14, 2008, 7:52am
Views: 1594
Posted on: Monday, Apr 14, 2008, 7:52am
Views: 1594
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