This organization offers many packages like boating, tubing , knee-boarding, snorkeling, fishing and sightseeing. Doing the boating tours through them is the best. For their many packages and especially for the boating tours, see http://bahamaboattours.com/packages.html#.UlaIBtIwpOx. Their office is at Nassau.
See also : Try watersports at Blue Hole Watersports