Dogs are practically everywhere. They have been in space, in the air, and even in the battlefield. But one place where dogs are seldom found (or photographed for that matter) is underwater. However, Seth Casteel, came up with the brilliant idea of actually capturing dogs, submerged in action. Check out these masterful 25 crazy Seth Casteel images of dogs underwater and see a side of a dog, you’ve probably never seen before. And for more amazing dog image, be sure to buy his book Underwater Dogs.