South Andros, Andros, Bahamas

Stargate Blue Hole

Stargate Blue Hole is one of the most famous inland blue holes on South Andros, set in dense pineyard forest a short walk from the road and accessible via a rope-assisted scramble down to the water surface. The hole has a freshwater lens in the upper section that gives way to saltwater below, with the halocline visible as a shimmering mirror layer at around 14 meters. The system penetrates horizontally beneath the Andros surface for over 4 kilometers in mapped passages and reaches depths over 100 meters in the deeper shafts, making it a world-class technical and cave-diving destination. Recreational divers stay in the upper basin and explore the dramatic halocline layer and the cathedral-like main entry chamber. Stalactites, fossil formations, and root systems hanging from the ceiling create a striking aesthetic. Cave training is required for any penetration; the site is operated under strict protocols. Stargate has hosted multiple international scientific expeditions exploring the geology and unique chemistry of mixed-water blue holes, and the site is widely featured in cave-diving photography and documentary work. The water is exceptionally clear in both layers, with the halocline producing surreal visual effects as divers move through it.