What could be more sublime than to explore the underwater realm in crystal-clear water?

These 15 spots are teeming with marine mammals and fish life and often boast spectacular reefs.

Stellar diving usually means great photo opportunities — here are 15 of the world's best places to take a camera.

Think you can become the Ultimate Diver? If so, the Ultimate Diver Training program can provide you with the knowledge and skill set to be the best of the best - a commercial diver.

Get your motor running with these 15 big-animal encounters, from sharks and manta rays to seals and humpback whales.

Looking for the best macro dive sites? We've got 15 of the best destinations to find creatures worthy of your macro lens.

Thousands of readers named the 30 best destinations in the world for you to take a dive vacation.

From the Andaman Sea to the Coral Sea, this region offers unspoiled reefs, big animals, thrilling drifts, World War II wrecks and unparalleled macro life.

Usually the phrases "monster squid" or "squid-infested waters" are enough to deter even the bravest scuba divers. Watch this amazing life-and-death battle on video.