REACHING NEW DEPTHS: British dive instructor Mark Ellyatt (right) plunges to a depth of 313m to set a new world record for the deepest scuba dive, off Phuket, Thailand, on Dec 18. Beating the previous mark by 5m, he took 12 minutes to make the descent but needed 6 hours and 40 minutes to return safely to the surface
Look at the number of air tanks the guy is carrying

Hey, anyone do scuba diving here? Is it dangerous?
How much does it cost to learn har?
