Marlins are big business in Mexico's Baja Sur, where local scientists and a dive shop are trying to protect the famed fish by swapping sport fishing for snorkel encounters.

Short on time? Dive with Martin can help plan a fun-packed dive trip (of course, you can always stay longer).

Here’s how to reivew a dive shop’s website for sustainable action and four sustainable dive shops operating in Cozumel.

Indonesia, Saba and Cozumel are dive classics reason.

Live in luxury when you dive with any of these boats, from the Galapagos the Maldives.

Head to Loreto Bay National Marine Park in the Sea of Cortez for sea lions, dolphins and macro life at this still-undiscovered hideaway

Here's where advanced divers can get their fix from Micronesia to Michigan.

Get more wow-factor with this Cozumel, Mexico, operator that delivers wilder adventures, bigger tanks and secret dive spots.

Balance your lights, focus and flash to get a great photo of the cenotes in Mexico's Yucatan Peninsula.