The best time to swim with whales in Tonga, how to get there, rules, and more.

Great places to scuba in California, Oregon and Washington during a drive-and-dive trip.

Expert tips on how to master Washington's currents so you can experience the region's riot of underwater color, from Great Pacific Octopuses to painted dahlia anemones.

One diver regains his stride in the beloved waters of California's Monterey and Carmel Bays.

There's more to the Maldives than overwater bungalows and manta rays, but they are worth the visit too.

While the list of countries accepting American travelers now is quite abbreviated, it does happen to include French Polynesia.

From swimming with sea creatures to exploring one of the world's largest reefs, Fiji is a brilliant choice for a dive trip.

A group of retirees in New Caledonia are documenting the population of poisonous reef snakes in Baie des Citrons as a part of a 17-year study.

Whale sharks, manta rays, oceanic whitetip sharks, sea turtles, monk seals and groupers are all endangered. Here’s how to help protect each one.