''Five Hours On One Breath'' - An adiult Green Turtle can stay submerged under water for up to 5 hours, its heart rate slowing down to 1 beat per minute. Photography by Jacques de Vos, an award winning photographer & 2012 Gold winner of Our World Underwater. Jacques de Vos specializes in Underwater photography (all done while Free-diving – on a single breath). He has a deep love of diving & the ocean. When he is not in the water, he also shoots land based work.