
Pillars of Hercules
Antigua and Barbuda · Antigua and Barbuda
Towering limestone sea caves and dramatic swim-throughs define this signature Antiguan dive site at the island's southwestern tip, where columns of rock plunge from 6 metres to a wall that drops beyond 30 metres into the blue. Dense clouds of silversides stream through the cavern entrances year-round, drawing spotted moray eels and Caribbean reef sharks to patrol the surge channels. Above the wall, healthy coral gardens of star and brain corals shelter a parade of sergeant majors, french angels, and hawksbill turtles that rest on the ledges.
Conditions
Depth
6 to 35 m
Advanced depths
Current
Can be moderate
Can pick up on the edge
Visibility
15 to 25 m
Clearest in the calm season
Water
26 to 31°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 28 | 27 | 26 |
| Vis (m) | 20 | 20 | 20 | 18 | 18 | 15 | 15 | 12 | 12 | 15 | 18 | 20 |
| Current | Gentle | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Lesser Antillean Bullfinch
Last confirmed Jun 19, 2026 · 80 records
Almost always
Nearly every dive
Bananaquit
Last confirmed Apr 10, 2026 · 73 records
Almost always
Nearly every dive
Carib Grackle
Last confirmed May 21, 2026 · 74 records
Almost always
Nearly every dive
Watts' Anole
Last confirmed Mar 2, 2026 · 14 records
Very likely
Most dives
Hawksbill Sea Turtle
Last confirmed Oct 2, 2024 · 2 records
Likely
About 6 in 10 dives
Spotted Moray Eel
Last confirmed Jan 31, 2024 · 2 records
Likely
About 6 in 10 dives
French Angelfish
Last confirmed Mar 8, 2026 · 4 records
Likely
About 6 in 10 dives
Gear