If everything about a horseshoe crab seems strange and ancient, it should, because everything about the animal is strange and ancient.

The SS Mohawk was sunk off the coast of Sanibel Island, Florida, on July 2, to be made into an artificial reef for scuba divers.

Shore diving can be the ultimate do-it-yourself adventure. Here are eight of the most extreme shore dives on the planet. Are you up to the challenge?

Here are tips to make your live-aboard trip better -- from easier packing to protecting the host environment to making the best memories possible.

Want to dive the best of Raja Ampat in Indonesia? The live-aboard Arenui combines the luxury of near-constant personal attention with the romance of a wooden sailing ship as it gets you to all the best dive sites in Raja Ampat, Indonesia.

Have you heard about the remote gems in the Gulf of Mexico about 100 miles off the Texas/Louisiana coast? Discover the Flower Garden Banks NMS.

You say you want a revolution...

About to take your first scuba diving vacation? Make the most of your time and money with these simple commonsense tips.

Check out _Scuba Diving_'s "Critter Hunt" articles and videos from beloved naturalists Ned and Anna DeLoach.