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  2. Blue hole - Wikipedia

    en.wikipedia.org/wiki/Blue_hole

    The Great Blue Hole, located near Ambergris Caye, Belize Dean's Blue Hole, Long Island, Bahamas Watling's Blue Hole, San Salvador Island, Bahamas. A blue hole is a large marine cavern or sinkhole, which is open to the surface and has developed in a bank or island composed of a carbonate bedrock (limestone or coral reef).

  3. Great Blue Hole - Wikipedia

    en.wikipedia.org/wiki/Great_Blue_Hole

    The Great Blue Hole is a large marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef , a small atoll 70 km (43 mi) from the mainland and Belize City . The hole is circular in shape, 318 m (1,043 ft) across and 124 m (407 ft) deep.

  4. Blue Hole (Red Sea) - Wikipedia

    en.wikipedia.org/wiki/Blue_Hole_(Red_Sea)

    The Blue Hole is a submarine sinkhole, with a maximum depth within the hole of just over 100 m (328 feet). There is a shallow opening to the sea around 6 m (20 feet) deep, known as "the saddle", and a 26 m (85 feet) long tunnel, known as "the Arch", whose ceiling is at a depth of 55 m (181 feet) and whose bottom falls away as it reaches the ...

  5. Blue Hole (New Mexico) - Wikipedia

    en.wikipedia.org/wiki/Blue_Hole_(New_Mexico)

    The Blue Hole is popular with divers and swimmers. The Blue Hole of Santa Rosa, or simply the Blue Hole, is a circular, bell-shaped pool or small lake located along Route 66 east of Santa Rosa, New Mexico that is a tourist attraction and swimming venue, and one of the most popular dive destinations in the US [1] for scuba diving and training.

  6. Dean's Blue Hole - Wikipedia

    en.wikipedia.org/wiki/Dean's_Blue_Hole

    Dean's Blue Hole is a blue hole located in The Bahamas in a bay west of Clarence Town on Long Island and is the world's third deepest with a depth of 202 metres (663 ft), after the Taam Ja' Blue Hole in the Chetumal Bay and the Dragon Hole in the South China Sea.

  7. Blue Hole (Castalia) - Wikipedia

    en.wikipedia.org/wiki/Blue_Hole_(Castalia)

    The Blue Hole is a fresh water pond and cenote located in Castalia, Erie County, Ohio, in the United States. From the 1920s to 1990 the Blue Hole was a tourist site , attracting 165,000 visitors annually at the height of its popularity, partly because of its location on State Route 269 , about 7 miles (11 km) southwest of the Cedar Point ...

  8. Blue Holes (Saudi Arabia) - Wikipedia

    en.wikipedia.org/wiki/Blue_Holes_(Saudi_Arabia)

    Protecting and studying these blue holes is in line with the goals of Saudi Arabia's green initiatives, represented by the initiative to raise the percentage of protected areas to reach 30% of the Kingdom's area by 2030, in addition to rehabilitating those affected by them. Saudi Arabia also announced that blue holes represent 9% of the marine ...

  9. Blue Hole (New Jersey) - Wikipedia

    en.wikipedia.org/wiki/Blue_Hole_(New_Jersey)

    The Blue Hole is located in the Pinelands of Monroe Township, Gloucester County, New Jersey and Winslow Township, Camden County, New Jersey. It is a clear blue body of water situated in the middle of a dense forest, with many similar such lakes in its immediate vicinity.