A water-filled natural limestone cavern, Dean's Blue Hole plunges 663 feet below ground level on Long Island, part of a string of Bahamian islands south of Nassau ... on a guided dive into its ...

We sink into Stargate, sweeping the void with our dive lights. Fifty feet from the ... headed by Keith Tinker, the Bahamas Blue Hole Expedition was conceived by Kenny Broad, a veteran cave ...

These are the best things to do in the Bahamas, from Nassau ... blue holes, or underwater cave systems, where you can swim in water that's more than 600 feet deep. Go snorkeling or scuba diving.