Mexico’s Sardine Run

Although striped marlins (Kajikia audax) are slower than some of their billfish cousins, their 50-mph (80-kph) speed is plenty fast for me. I try to swim alongside this stealth bomber […]

Diving in the Turks and Caicos Islands

Experience the thrill of diving in the Turks and Caicos Islands, featuring stunning marine life and breathtaking underwater landscapes.

California’s Channel Islands

It’s 5 p.m., officially boarding time, and the floodgates have opened. Eager, impatient divers synchronously emerge from their cars and begin to haul carts full of gear down the dock. We’re right there with them, jostling to get a prime spot for our tanks.

California Sea Lion

From Warship to Reef

Discover the remarkable history of the HMCS Canada, a warship now resting underwater, transformed into a vibrant reef habitat.

Diver Jason Cook illuminates the anchor windlass on the foredeck of HMCS Canada.

Your Lungs and Diving

How does diving affect lung function? While all divers will likely have increased CO2 levels (to some degree) during a dive, the manifestations are minor.

Woman dives beneath a boat

My Journey to Dive All 50 States

It was an ambitious goal, but one diver dove in all 50 states. It took over four years, but adventures had, memories made and lessons learned were worth it.

Diver Jennifer Idol wears her scuba suit and holds a camera

The Gift of Kimbe

One diver chose to document Kimbe Bay. The area boasts colorful sea life but the trip itself posed many challenges for the dive team. Learn more about their incredible story.

An aerial view of volcanic islands surrounded by deep blue water

Bali Road Trip

Bali is a fantastic place for divers — both topside and underwater. Sea critters range from tiny seahorses to thriving reefs and there are so many to see. Learn more about diving in Bali.

Yellow, orange and pink sea fans

Yap

Yap is the place to go for manta ray sightings. But Yap also is home to other great marine critters including mola mola, sharks and more. Learn more about traveling and diving in Yap.

Giant devil ray flaps at the camera

The Observer Effect

The observer effect is real. When you dive, your presence has a significant impact on the marine world around you. Regardless of your intent, human presence in the ocean is intrusive. Learn more about what exactly the observer effect is.

At least two dozen snorkelers observe a manatee