The Great Blue Hole is a large submarine sink-hole off the coast of Belize. It lies near the centre of Lighthouse Reef, a small atoll 70 km mi) from the mainland and Belize City. The Great Blue Hole is a part of the larger Belize Barrier Reef.
37 Incredible Wreck Dives That Will Give You Goosebumps This is so amazing! Check out the images of shipwrecks and aircraft wrecks found in the depths of the sea! Photograph Steaming Kittiwake by Nadya Kulagina on