Great Blue Hole (Lighthouse Reef, Belize)

Blue holes are large marine caverns or sinkholes developed in carbonate bedrock that extend below sea level and may provide access to submerged cave passages. General reference sources list the Great Blue Hole (Lighthouse Reef, Belize) as a well-known example of this category of feature. The materials supplied for this entry comprise a general encyclopedic definition of "blue hole" and lists of notable examples worldwide; they do not include historical accounts, witness reports, named entities, or any claims of paranormal activity associated with the Great Blue Hole or other blue holes. Because the provided research notes and sources do not document hauntings, ghost stories, apparitions, or dive-related supernatural incidents for the Great Blue Hole at Lighthouse Reef, this entry records the site as geologically notable but contains no verified or reported paranormal phenomena. The name "Blue Hole" is also a common toponym used for unrelated geographic features (for example, a channel in Tillamook County, Oregon, referenced in one data source), underscoring that folklore or local stories—if they exist—were not present in the supplied materials.