Dive Down Where?

National Geographic has a series of dive photos from the Bahamas. Some of the scenes are quite stirring.

Although getting sucked down the Chimney Blue Hole doesn't really sound like a lot of fun.

"All of a sudden, it's got you," says photographer Wes Skiles of the "insanely dangerous" vortex in Chimney Blue Hole off Grand Bahama. Like a giant bathtub drain, it sucks down millions of gallons when the tide comes in. "It's like going over a waterfall—there's no escape." Keeping his distance, a diver sets up equipment to measure the whirlpool's flow rate.