blue hole 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). Blue holes typically contain tidally influenced water of fresh, ma ...

is a submarine cave or sinkhole. It may also refer to:

Water-filled holes

In the Bahamas

* Blue Holes National Park, Andros, which claims 22 blue holes *

Dean's Blue Hole __NOTOC__ 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 , after the Taam Ja' Blue Hole in the Chetumal Bay and the Dragon Hole in the Sout ...

, Long Island * Far Side Blue Hole, also known as Magical Blue Hole,

Abaco Islands The Abaco Islands lie in the north of Bahamas, The Bahamas, about 193 miles (167.7 nautical miles or 310.6 km) east of Miami, Florida, US. The main islands are Great Abaco and Little Abaco, which is just west of Great Abaco's northern tip. T ...

* Lost Reel Blue Hole,

* Nancy’s Blue Hole, near Coopers Town, Abaco * Watling's Blue Hole on

San Salvador Island San Salvador Island, previously Watling's Island, is an islands of the Bahamas, island and districts of The Bahamas, district of The Bahamas, famed for being the probable location of Christopher Columbus's first landing of the Americas on 12 Oc ...

In Belize

Great Blue Hole The Great Blue Hole is a large Blue hole, marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll from the mainland and Belize City. The hole is circular in shape, across and deep. It has a surface ...

on Lighthouse Reef * Blue Hole National Park, inland near Belmopan, Cayo District

In the United States

In Arkansas

* Blue Hole (Desha County, Arkansas), four lakes named Blue Hole in

List of lakes in Desha County, Arkansas There are at least 78 named lakes and reservoir A reservoir (; ) is an enlarged lake behind a dam, usually built to water storage, store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlli ...

* Blue Hole (Lafayette County, Arkansas), in List of lakes in Lafayette County, Arkansas * Blue Hole (Lee County, Arkansas) in

List of lakes in Lee County, Arkansas There are at least 39 named lakes and reservoirs in Lee County, Arkansas. Lakes * Anderson Lake, , el. * Bain Lake, , el. * Big Twin Lake, , el. * Big Yancopin Lake, , el. * Blue Hole, , el. * Blue Lake, , el. * Box Lake, , el. ...

* Blue Hole (Monroe County, Arkansas) in

List of lakes in Monroe County, Arkansas There are at least 101 named lakes and reservoirs in Monroe County, Arkansas. Lakes * Barnes Lake, , el. * Bear Slough, , el. * Beaver Dam Lake, , el. * Bellknap Lake, , el. * Big Baptize Lake, , el. * Big Cotton Lake, , el. * ...

Elsewhere in the U.S.

* Blue Hole (Big Pine Key), an abandoned rock quarry in the Florida Keys * Blue Hole (Guam), outside the entrance to

Apra Harbor Apra Harbor, also called Port Apra, is a deep-water port on the western side of the United States territory of Guam. It is considered one of the best natural ports in the Pacific Ocean. The harbor is bounded by Cabras Island and the Glass Breakwat ...

* Blue Hole (Hawaii), also known as Wailua Headwaters, the start of the North Folk of the

Wailua River Wailua, Hawaiian for ''two waters'', may refer to: Places Hawaii, United States Kauai *Wailua, Kauai, a town on the east coast **Wailuā Homesteads, Hawaii, a nearby town in the hills to the west *Wailua River, a river in eastern Kauai **Wailua ...

at Mount Waialeale on Kauai, Hawaii *

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 ...

* Blue Hole (New Mexico), a cenóte and popular altitude scuba diving site * Blue Hole (Castalia), in Castalia, Ohio * Blue Hole, the largest of the San Antonio Springs, Texas

Elsewhere

* Blue Hole (Red Sea) in Egypt * Blue Hole, associated with the

Inland Sea, Gozo The Inland Sea, sometimes called Qawra in Maltese and also known as Dwejra, is a lagoon of seawater on the island of Gozo linked to the Mediterranean Sea through an opening formed by a narrow natural arch. It was probably formed where a geologi ...

on Malta, Italy * Blue Holes (Palau), north of Blue Corner, Palau * Nanda Blue Hole, also known as Jackie's Blue Hole, on

Espiritu Santo Espiritu Santo (, ; ) is the largest island in the nation of Vanuatu, with an area of and a population of around 40,000 according to the 2009 census. Geography The island belongs to the archipelago of the New Hebrides in the Pacific region ...

, Vanuatu * Virgin Blue Hole, south of Blue Corner, Palau * Yongle Blue Hole, also known as

Dragon Hole Dragon Hole, also known as Sansha Yongle Blue Hole (Traditional chinese:永樂藍洞) after the third Ming emperor, Yongle, was the deepest known blue hole in the world at deep until it was discovered that the Taam Ja' surpassed it in 2024. ...

, in the Paracel Islands, China * Blue Holes (Saudi Arabia)

Other

* Bluehole, Inc. (formerly Bluehole Studio, Inc.), the developer of ''TERA'', ''Devilian'' and ''PlayerUnknown's Battlegrounds''. **Bluehole Interactive, the former name of En Masse Entertainment. * Bluehole, Kentucky, a postoffice * ''Blue Hole'', a manga series by Yukinobu Hoshino {{disambiguation