description Dean's Blue Hole Overview
Dean’s Blue Hole is a remarkable limestone sinkhole located on Long Island in the Bahamas. It represents the world's deepest known underwater cavity, reaching approximately 202 meters (663 feet). The hole’s unique formation and extreme depth make it a significant geological feature and a globally recognized site for freediving competitions and exploration. Divers, researchers, and enthusiasts interested in karst formations and deep-water environments utilize the location.
insights Why this score
Dean's Blue Hole ranks #25 of 224 in the Karst ranking, behind Phraya Nakhon Cave, ahead of Gunung Mulu Karst.
help Dean's Blue Hole FAQ
Where exactly is Dean's Blue Hole located?
Dean's Blue Hole is a massive underwater sinkhole located in a bay west of Clarence Town on Long Island in the Bahamas. It sits right on the shoreline, making it easily accessible from the beach.
How deep is Dean's Blue Hole?
It has a recorded depth of approximately 202 meters (663 feet), making it one of the deepest known underwater sinkholes in the world. Its unique shape features a narrow surface opening that expands into a massive cavern beneath.
Is Dean's Blue Hole used for free-diving competitions?
Yes, it was the site of the annual Vertical Blue free-diving competition, which frequently attracted world-champion free-divers like William Trubridge. The calm, warm waters and sheer vertical drop make it an ideal spot for the sport.
Is it safe to swim in Dean's Blue Hole?
Swimming is generally safe in the shallow, sunlit areas near the shore during calm weather. However, free-divers and snorkelers must exercise extreme caution, as the sudden drop-off and optical illusion of depth can cause severe disorientation.
explore Explore More
Similar to Dean's Blue Hole
See all arrow_forward
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
