In Castalia, Ohio, named after the famed site, the Blue Hole limestone configurations were tourist attractions for many years and are now fish hatcheries.

Well known for scenic bush strolls and the Blue Hole which is popular for swimming.

Crombies Cave, the longest granite cave in Australia at 832 metres, can be found in the next small creek, Powers Creek, an easy walk to the south of the Blue Hole.

The Blue Hole is the only fresh water lake in the Florida Keys.

The Blue Hole is an abandoned rock quarry that was used for nearby road fills and Henry Flagler's Overseas Railroad.

Image: Blue Hole Big Pine Key sign. jpg | One of the many Green iguanas that can be seen near the Blue Hole area

The Blue Hole is a body of water in the middle of woods that is clear blue and always cold, even in the summer, with a very steep shoreline and a maximum depth of approximately.

The most famous of these is Blue Hole, a popular spot for diving, where cool 61 ° F ( 16 ° C ) water forms a lake over 81 ft ( 25 m ) deep.

The Blue Hole is another spring-fed water feature of Castalia.

Blue Hole and Jacob's Well are located along Cypress Creek.

In addition to the ruins listed above there are several other important nature reserves including two National Parks, Blue Hole ( park ) and Guanacaste National Park.

The Great Blue Hole, located near Ambergris Caye, Belize.

The deepest known undersea sinkhole is Dean's Blue Hole in Bahamas.

* Dean's Blue Hole – Bahamas.

* Blue Hole – Dahab, Egypt.

Also see Bell's to Blue Hole drift dive.

* Great Blue Hole – Belize.

The stages are: Main Stage, Daredevil Palace, Shady Grove Stage, Kesey Stage, Gypsy Stage, W. C. Fields Stage, Spirit Tower, Rabbit Hole, Front Porch, Blue Moon Stage, Stage Left, Chez Ray's Next Stage, Monkey Palace, Might Tiny Puppet Stage, Hoarse Chorale, Morningwood Odditorium, Community Village, and Youth Stage.

* Searching for the Jersey Devil is the basis of the Cinemassacre film Jersey Odysseys: Legend of the Blue Hole ( 2004 film )

Goldfield also served as the fictional town of " Glory Hole " in the 1987 film Cherry 2000, and as the fictional California town in the 1998 film Desert Blue.

The Hummingbird Highway as seen from atop the Blue Hole NP Observation tower

Most noted in North America for their song ' 白いヤミの中 ' ( The White Darkness ), popularly known as ' Shiroi Yami no Naka ', off of the single ' ビッグ ・ ブルー ' ( Big Blue ) which was used in an anime music video entitled " Tainted Donuts ".

* Perfect Blue ( パーフェクト ・ ブルー ) ( 1989, ISBN 4-488-41101-0 )

*" ミッドナイト ブルー " ( Midnight Blue ) by KISS ME QUICK ( episodes 1-34 )