18 Holes In The World - Beautiful Natural Holes, Dean's Blue Hole, Bahamas Blue Hole Dehaene is known worldwide as an ideal place for a free dive. It is situated in the bay to the west of the town of Clarence, the island of Long Island, Bahamas.Blue Hole has a circular base, with a diameter of 25 to 35 meters (82-110 feet). After a descent of 20 meters (66 feet), significantly expanding the hole in the cave with a diameter of 100 meters (330 feet) failure Bimah, Oman failure Bimah, limestone crater filled with blue-green water, is a popular attraction of tourists coming to Kuarayat. It is located in Oman. failure is located 500 meters from the beach.
water is salty because the lake is connected to an underwater cave with the sea. Great Blue Hole, Great Blue Hole - is situated in the center of Lighthouse Reef Atoll in the Belize Barrier Reef. The hole is circular sinkholes diameter of 305 meters, leaving a depth of 120 m to Blue Hole became famous thanks to the French explorer Jacques Yves Cousteau, who included it in the top 10 places in the world for diving. In 1972, on his vessel Calypso, he measured the depth of the hole and confirmed the theory of its formation. going down to the single U-boat in the hole, the expedition discovered a massive stalactites, some of which were placed at an angle of 10 ° -13 ° from the vertical, indicating a shift in geological and lying below the slope of the plateau.