On a late-night dive in Sitka, Alaska, two divers encounter myriad fascinating creatures, including a giant Pacific octopus on the prowl.

Dive into a bit of history in the waters surrounding this remote Antarctic island, the site of famed explorer Sir Ernest Shackleton's harrowing journey.

Sitting in just 30 feet of water off Panther Point in British Columbia, the Panther is a nearly 200-year-old three-masted clipper wreck teeming with marine life.

West Greenland is where letters to Santa wind up every year, but it's not in some workshop where you'll find the magic. The real gifts are below the water's surface.

Every year, spawning salmon return to the same spot in Alaska as a part of their final act—here's what happens

On a recent expedition aboard the National Geographic Endurance, one diver explores the lush biodiversity in the Falkland Islands' surrounding waters.

On an expedition to South America, one diver experiences a rare encounter with a brand-new species of comb jelly—the pinnate winged comb jelly.

Despite their frigid water temps, North America's fjords are hotbeds of sea life. Get a taste of the myriad creatures you might encounter when diving Cross and Desolation Sounds.

Patrick Webster chronicles his coldwater adventures onboard Linblad Expeditions, highlighting the fascinating and colorful jellyfish found among polar kelp forests.