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.
Blue Hill, Saint Helena
Terrain in the district is quite varied with steep ridges and a limited amount of flat ground, as befits the island's volcanic origin. Blue Hill's main settlement, with the location of the community centre, is Blue Hill Village. The district also includes the settlements of Barren Ground, Head o' Wain, and Thompson's Wood, together with a few scattered cottages.