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

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

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.