Winter diving isn't for everyone. Colorado Scuba Diving Academy invites divers to hone their skills off-season from a decidedly warmer place—the pool.

The water may be frigid, but brave the temperatures, and you're rewarded with a smorgasbord of brightly colored critters that dazzle.

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.

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.

The murky Mississippi River water surrounding Garrison Dam is full of treasure, making it a popular attraction for archaeologists, professional or otherwise.

The unassuming lake in Rawlings, Virginia, may be quiet on the surface, but myriad surprises await below—including prop skeletons, a computer graveyard and even a deconstructed Black Hawk helicopter.

Nearly two dozen wrecks dot the seafloor from Pensacola to Port St. Joe. Here's how to experience them all for yourself.

Diving in Connecticut? You heard us right. Check out this dive spot from the eyes of locals.

The perfect destination to practice the art of ice diving, Payette Lake's cold and clear waters are a must-dive experience.