North Bimini lies fifty miles east of Miami, positioned where the Gulf Stream accelerates across the western edge of the Great Bahama Bank. That hydrographic fact delivers visibility routinely exceeding one hundred feet and currents that ferry pelagic species—spotted eagle rays, reef sharks, Atlantic dolphins—past vertical walls and limestone ledges. The island became a serious dive destination in the nineteen-sixties when treasure hunters and sport fishermen began mapping offshore wrecks; today operators based at Alice Town's marinas service both novice reef tours and advanced drift dives along the Drop, a continental-shelf escarpment that plunges from forty to six thousand feet within two nautical miles of shore. Bimini Bahamas diving revolves around four distinct underwater zones. The shallows inside the western lagoon—ten to thirty feet—shelter elkhorn and staghorn coral gardens ideal for snorkelers and certification students. The Sapona, a concrete-hulled prohibition-era rum runner grounded in fifteen feet during the 1926 hurricane, offers the most accessible wreck penetration in the Bahamas; its barnacled holds and rusted ribs host schools of yellowtail snapper and occasional nurse sharks. Farther offshore, the Victory Reef system and adjacent Bull Run Wall present vertical faces draped with sea fans and encrusting sponges, patrolled by Caribbean reef sharks and the occasional hammerhead during winter months. Advanced divers favor the deeper ledges south of South Bimini, where strong currents demand drift protocols but reward participants with sightings of bull sharks, manta rays, and migratory tarpon aggregations between April and August. Operators schedule morning departures to avoid afternoon wind chop and leverage the Gulf Stream's tidal windows. Most dive boats depart Alice Town between seven and nine, reaching outer sites within twenty to forty minutes. Two-tank packages remain standard; single-dive trips cater to ferry passengers on day schedules from Florida. Conservation regulations prohibit spearfishing and require dive flags; lionfish culling is encouraged under Bahamas Marine Resources permits. Water temperature ranges from seventy-two degrees Fahrenheit in February to eighty-four in September, making three-millimeter wetsuits sufficient year-round.