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  2. Blue Hole (Castalia) - Wikipedia

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

    Entrance to Blue Hole. 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 amusement park in Sandusky, Ohio.

  3. File:The Famous Blue Hole, Castalia, Ohio (Date Unknown).jpg

    en.wikipedia.org/wiki/File:The_Famous_Blue_Hole...

    The Public Domain Mark (PDM) is not a copyright license, but a symbol used to indicate that a work is in the public domain. When it is applied by the author or the copyright holder, community consensus has decided such works as being public domain in the US and countries where it is legally possible to release own work to the public domain. In ...

  4. List of sinkholes - Wikipedia

    en.wikipedia.org/wiki/List_of_sinkholes

    The Great Blue Hole, a giant submarine sinkhole, near Ambergris Caye, Belize. The following is a list of sinkholes, blue holes, dolines, crown holes, cenotes, and pit caves. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.

  5. Scientists Are Planning on Plunging Into the World’s ‘Portal ...

    www.aol.com/scientists-planning-plunging-world...

    Known as Dean’s Blue Hole, this geological wonder located off the coast of Long Island is a staggering 663 feet deep, making it one of the deepest blue holes in the world and also an area ripe ...

  6. ‘Blue hole’ is largest ever discovered at 1.3K feet deep ...

    www.aol.com/blue-hole-largest-ever-discovered...

    Known in scientific circles as Karst formations, blue holes are actually vertical marine caves that were carved over thousands of years by glacial runoff during the Ice Age, according to Discovery ...

  7. Ohio has 14 schools named 2024 National Blue Ribbon winners ...

    www.aol.com/ohio-14-schools-named-2024-174656484...

    On the heels of Ohio handing out school report cards, the U.S. Department of Education recognized 14 Ohio schools as 2024 National Blue Ribbon Schools for outstanding academic performance on Monday.

  8. 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).

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

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    related to: blue holes ohio locations open to the public