Blue Holes
Andros · Bahamas
Andros has more blue holes than anywhere else on Earth — over 200 inland freshwater caves and more than 50 ocean blue holes that drop vertically through the limestone plateau. The inland holes are a surreal mix of fresh water floating above a denser saltwater layer, and the halocline creates a shimmering, mirror-like distortion that has to be seen to be believed. Ocean blue holes are colonized by dense schools of glassy sweepers and silversides, with bull sharks occasionally ascending from below.
Conditions
Depth
5 to 40 m
Advanced depths
Current
Usually still
Can pick up on the edge
Visibility
20 to 35 m
Clearest in the calm season
Water
20 to 30°C
1mm shorty
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 20 | 20 | 21 | 22 | 24 | 26 | 27 | 27 | 27 | 26 | 23 | 21 |
| Vis (m) | 25 | 25 | 25 | 25 | 25 | 20 | 20 | 20 | 20 | 22 | 25 | 25 |
| Current | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still |
Your chances of seeing each animal
Brown Anole
Last confirmed Mar 3, 2026 · 6 records
Likely
About 6 in 10 dives
Bahama Oriole
Last confirmed May 17, 2026 · 6 records
Likely
About 6 in 10 dives
West Indian Fuzzy Chiton
Last confirmed May 26, 2026 · 5 records
Likely
About 6 in 10 dives
Checkered Puffer
Last confirmed Mar 3, 2026 · 3 records
Sometimes
About 1 in 3 dives
Western Spindalis
Last confirmed Mar 4, 2026 · 8 records
Sometimes
About 1 in 3 dives
Bull Shark
Expected
Known here, not yet in recent logs
Glassy Sweeper
Expected
Known here, not yet in recent logs
Remipedia (cave crustacean)
Expected
Known here, not yet in recent logs
Gear