Andros · about 19 km from Kemp's Bay
Black Hole of South Andros
Closed to divers
Diving is only allowed for scientific research; the hole is only reachable by helicopter.
- Max depth47 m (154 ft)
- CertificationFull cave
- SpecialExperienced divers
Diving and fills
Dive here with
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Fills nearby
- Fill stationAndros Diving – Andros Beach Club (Kemp's Bay)Not listed — askRoute ↗
Now at Black Hole of South Andros
What it looks like
All 1 videos and posts
Videos and posts
From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.
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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.
The dive
A 'black hole': a dense layer of phototrophic purple sulphur bacteria (Allochromatium, Thiocapsa) turns the water black and heats it to 36 °C (possibly 40 °C).
Profile and sections
A 'black hole': a dense layer of phototrophic purple sulphur bacteria (Allochromatium, Thiocapsa) turns the water black and heats it to 36 °C (possibly 40 °C). Above that layer lies brackish, oxygenated water (12 psu); below it salty, anoxic water.
The first scientific dives took place in June 1999 (Stephanie Schwabe).
- Depth and profile
- Round hole ~300 m across, down to -47 m · ~1 m thick purple sulphur-bacteria layer at ~-17.8 m (36 °C; 29 °C above) · H₂S peak in that layer
- Configuration
- Not applicable: diving is banned.
- DPV: Not DPV-suitable
- Diving not allowed
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Configuration unknown — research beforehand
- Goes down to 47 m (trimix or deco may be needed)
- Experienced divers only
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
Surrounded by mudflats; only reachable by air (helicopter).
Around Black Hole of South Andros
Fills1 fill station · 19 km
Andros Diving – Andros Beach Club (Kemp's Bay)
1 Way of Life, Kemp's Bay, South Andros
Not listed — ask
Ask
Dive centre at the resort: reef, wall and wreck dives, ocean and inland blue holes (incl. Stargate, $200). 25 ft catamaran for max. 6 divers, most sites <10 min away. BCD/regulator rental $40 a day. No tech or CCR support listed. Availability is limited, as the owner has to be on the island; book well ahead.
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