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

Scuba diving California's best artificial reef — Eureka oil platform — combines the rugged steel of oil rigs with an abundance of marine life.

The luxurious Cuan Law is the largest sailing trimaran in the world — and it can get divers to the best spots in the beautiful British Virgin Islands.

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