Alert Diver Category: Life Aquatic

IT IS DAY FIVE OF THE VOYAGE, and our liveaboard has finally finished the overnight crossing south from the warm waters of Darwin and Wolf islands to Cape Douglas, Isla Fernandina. Although we don’t travel a great distance …

The wreck of the USS Kittiwake in Grand Cayman is a crowd-pleaser of a dive. Now 15 years underwater, it lies on its side but is still easy to explore […]

Harp seals are adorable sea critters, adapted perfectly for living in cold climates. Diving with them is a once-in-a-lifetime experience. Read more about one diver’s adventures with harp seals.

I WAS HOOKED THE FIRST TIME I saw a southern sea otter bobbing in the surf off the coast of California’s Big Sur. I didn’t know then that I would be as spellbound by these rare creatures decades later as I was at that very first sighting.

At first she is almost nothing: a slight distortion in the reef, a suggestion of movement where the reef should be still.

Sperm whale photography can be challenging to the photographer as the whales can be evasive. However, it can be incredibly rewarding. Learn more about one photographer’s experiences with sperm whales.

One of the greatest symbols of wildlife in the animal kingdom, penguins endear themselves with their comical antics and wow us by thriving in unbelievably hostile environments.

The Galapagos Islands host a strange, yet wonderful collection of animals. The area also boasts great dive sites. Learn more about the Galapagos.

AN EDIBLE, SLOW-MOVING ANIMAL that lives in clear, shallow waters doesn’t have a high chance of survival these days. Conchs, specifically queen conchs, used to be widespread throughout the Florida Keys and the Caribbean.

Tuna are a warm-blooded predator who cannot stop swimming, but their populations are in trouble. Read more about tuna.