Watch mobula rays — aka devil rays — feeding and flying off Baja California, Mexico, in what National Geographic says could be the largest school ever filmed.

Scuba Club Cozumel has been serving divers for more than 25 years with an unrivaled dedication to safety and personalized diving experiences. Located on the island of Cozumelin Mexico’s Caribbean Sea, the PADI Five Star International Training Center provides diving services for Scuba Club Cozumel Dive Resort. See the video for three reasons you should dive with Scuba Club Cozumel.

The Everflex C-Zip brings surfing style and function to scuba divers. High-stretch neoprene provides a flexible, easy swimming fit as well as the warmth multiple-dive days require.

A twin-lens mask with a special skirt, the Synergy combines soft, high-grade silicone with a tapered design. It balances support and flexibility to provide a perfect fit for almost any face.

A great choice for divers who demand performance on a budget, Atomic’s Z3 is an easy-­‐breathing regulator that offers the same technology as the company’s flagship T3 model at a wallet-­‐friendly price tag.

Test your knowledge of dive geography using the three clues to determine the name of this mystery dive spot.

Check out this video from an underwater photographer as he comes face to face with a deadly leopard seal. You'll be surprised by what happens.

This scuba diver has dedicated her life to conservation work in the South Pacific and was instrumental in the development of the Cook Islands Shark Sanctuary.

Explore more than 300 wrecks, search for the elusive Roanoke, spot the exotic Undertaker and more in our breakdown of Bermuda's 10 best dive experiences.