A diver swims alongside a Greenland shark, a rarely-seen species that looks like it has been etched from stone. They can survive for more than 200 years at depths of up to 600 metres under Arctic ice. They grow to 23-feet long and are so fearsome they have even been known to eat polar bears
How cool is this.... the BOB (Breathing Observation Bubble) scooters in St John, Virgin Islands. Great fun! Easy to do and a diver stays with you to keep you on the path. You are 17 ft under water, scooting over shipwrecks, coral and through schools of fish.