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.

Tips for the first-time or return visitors, plus under-the-radar ideas and events for your next trip to these classic dive destinations.

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

Get your heart beating and blood flowing when you dive any of these high-octane sites from Egypt to French Polynesia.

Some of the world’s best dive sites are only accessible by boat, but unfortunately, seasickness prevents some divers from visiting them.

When I first started scuba diving, I was as interested in how many dives I had as much as I was exploring and learning about the amazing underwater environment.

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

Dive operators are sustainable travel to new heights by helping turtles, planting sea grass, and more.

Snooze on the shoreline from Belize to Bonaire, the Florida Keys to French Polynesia.