Once a year, divers of all skill levels gather for a weekend of frigid diving in one of Iowa's frozen-over lakes.

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Monterey, California, is home to insatiably curious and playful harbor seals. Here's what it's like when they're zipping around you while on a dive.

When the temperatures dip, but the urge to dive hits, residents in South Carolina head to Lake Keowee, where an on-site energy plant warms the water to temperatures up to 80 degrees.

From Pensacola to Panama City, the Florida Panhandle is packed with biodiversity and so many wrecks (40-plus and counting), you can't possibly see it all in one trip.

Experience the thrill of diving the USS Oriskany. Encounter vibrant marine life, swim through massive structures and witness the transformation of this military titan.

Located 16 miles off the coast of Cape Hatteras, North Carolina, the Civil War shipwreck, USS Monitor, is protected and managed by Monitor National Marine Sanctuary and is listed as a National Historic Landmark and protected as a war grave. Monitor National Marine Sanctuary is a unique cultural treasure for the most adventurous of skilled divers.

Dive with us in Western Pennsylvania, where we found a quarry with a secret you wouldn't expect. (Spoiler alert: It's a seasonal jellyfish bloom that never fails to dazzle.)

Don’t let the cold temperatures scare you away from diving this abundant underwater fjord in Washington. Designated as a marine preserve, this destination is the perfect place to see wolf eels, giant Pacific octopuses, lingcod and more.