During the Formula3Freediving Week here on Grand Cayman at the end of May 2010, Kirk Krack of Performance Freediving International, shows us why the Dive-Xtras Cuda is the machine of choice for serious, deep fun! Follow along for the ride while our 'scootercam' catches all the action, including a dramatic pass through Dan's Donut, a 15m long cave in 72m of water... Don't forget to breathe!

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