From Arctic ice to Great Lakes wrecks, zip on a drysuit and dive in with us as we showcase 15 of the world’s best cold-water dives.

There are a lot of deadbeat dads in the animal kingdom, but a few ocean species are the exception. These standup fathers go above and beyond.

The best wrecks, reefs and wall dives in America's Caribbean.

Cozumel — Mexico's largest Caribbean island — is where easy, affordable diving is an institution.