Blue Hole (Castalia)
The Blue Hole is a fresh water pond 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 southwest of the Cedar Point amusement park in Sandusky, Ohio.
Mount Hay (New South Wales)
Mount Hay, a mountain that is part of the Mt Hay Range of the Blue Mountains Range which is a spur off the Great Dividing Range, is located in the Blue Mountains National Park, New South Wales, Australia. It is located approximately west of Sydney and north of the nearest town, Wentworth Falls. Mount Hay is approximately AMSL and is one of several basalt caps located within the UNESCO World Heritage Greater Blue Mountains Area.