Cocos Island

“PURA VIDA!” our dive guide, Sergio, exclaimed with a relaxed smile. Eight dive buddies, Sergio, and I just had an incredible experience: A 35-foot-long whale shark swam a few feet over our heads at one of the better-known dive sites at Cocos Island, Costa Rica. …

Alert Diver Q4 2022

Kavieng

As a diver and photographer, I seek remote locations offering unparalleled underwater experiences. The farther away and the fewer the people, the better. Papua New Guinea is such a place.

A split image shows the house reef at Lissenung.

A Quest for Life

Seemingly crafted for photographers, nudibranchs are slow-moving and vibrant and have adapted to curious shapes and sizes. Aside from their fascinating appearance and cute demeanor, they also play an essential role in science and have been the focus of study for many decades.

The Miamira tenue sea slug often has a partner shrimp riding along its back and sides.

North Sulawesi Trifecta

In North Sulawesi, Indonesia there is a sprawling 1,100 miles of coastline. The is home to astonishing coral reefs and a rich diversity of ocean life. Divers have a lot to look forward to.

A snorkeler explores the pristine reefs of the Bunaken National Park in the shadow of Manado Tua volcano.

Women’s Health in Diving

The recommendations for male and female divers are largely the same, but certain considerations should be made for female divers in regard to physical and physiological differences.

A female diver explores a coral reef

An Island to Ourselves: Curaçao

Curaçao is unlike other Caribbean dive destinations in that it is not crowded by tourists. A diver can find just about everything they need both above and below the water. Learn more about how to dive it.

Roatán

Roatán offers gorgeous beaches and underwater sites — including dolphins, shipwrecks, reef sharks and more. Learn more about diving in Roatán.

Blue-and-yellow angelfish swims near coral

The Last Wild Island

Thanks to intense conservation efforts, Tetepare Island, part of the Solomon Islands, has restored and conserved much of his marine land — which has saved sea turtle populations. Read more.

Split shot of coral in water and island on top

Beyond Phuket

Phuket is Thailand’s gateway to the Andaman Sea. Regardless of whether you head north or south from this vibrant dive mecca, prepare to be amazed.

Lone woman on beach reads a book

The Cayman Islands

With 365 dive sites, world-class walls and a marine park celebrating 25 years of protected status, the Cayman Islands are a diver’s dream. Learn what to expect and how to dive in the Cayman Islands.

Male scuba diver takes a photo of a brown grouper