Join the man who discovered the _Titanic_ as he probes the ocean to depths of 6,000 feet.

A mother humpback and her calf — with a model — were filmed in the Kingdom of Tonga to bring attention to the plight of humpback whales.

Pioneering underwater explorer Jill Heinerth has been awarded the inaugural Sir Christopher Ondaatje Medal for Exploration by the Royal Canadian Geographical Society.

Grand Cayman has 365 moored dive sites so that you can dive every day of the year without repeating a dive. The newest is the Divetech's Guardian of the Reef statue.

Want to see a mermaid swimming with whale sharks in the Philippines? Watch this stunning video.

Rick MacPherson's tireless efforts to address global threats to coral reefs and empower traditional communities that are dependent on their coastal ecosystems to conserve their resources has earned him the honor of Sea Hero of the Year.

Whether you're a seasoned veteran or an inexperienced diver, REEF Volunteer Survey Projects will change the way you dive.

A swarm of jacks in Cabo Pulmo Park, Mexico, dwarfs an underwater photographer in a phenomenal courtship display.

Want to know where you can scuba dive with goliath grouper? Another wondrous spawning season for goliath grouper has come and gone in Florida, but goliaths, the largest grouper in the Atlantic, are known to return to the same sites like clockwork, so divers can witness the event every year.