There are many intact and diveable shipwrecks scattered throughout Canada's Great Lakes.

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Marine protected areas you can dive, from California to Indonesia.

Vis Island, located in Croatia, is home to several lost ships and aircraft wrecks that make for epic technical dives in the Adriatic Sea.

Power coral recovery when you dive with any of these reef restoration initiatives.

Scuba diving the glass sponge reefs in British Columbia, Canada, presents a unique opportunity for divers to see a very rare, ancient organic reef structure.

These 700 islands offer an unbeatable mix of underwater adventure, with shark dives, wrecks, reefs, grottoes and more.

There are lush reef scapes, numerous shipwrecks, large groups of schooling fish, and plenty of pelagics to satisfy all types of explorers and divers in the North Red Sea.

Here are ways you can travel that don't hurt—and can even help!—the planet.