
Kelleston Drain
Tobago · Trinidad and Tobago
Home to one of the Caribbean's largest living brain corals — a Colpophyllia natans specimen estimated at over 2 metres across and hundreds of years old that sits at the centre of a sloping reef like a cathedral dome. The site draws steady currents that feed nutrient-rich water up the slope, sustaining dense schools of creole wrasse, blue chromis, and occasional eagle rays. Experienced guides know exactly where nurse sharks rest in the deeper sand channels.
Conditions
Depth
8 to 30 m
Open water and up
Current
Can be moderate
Can pick up on the edge
Visibility
10 to 18 m
Clearest in the calm season
Water
25 to 29°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 25 |
| Vis (m) | 20 | 20 | 20 | 18 | 15 | 10 | 10 | 10 | 12 | 12 | 15 | 18 |
| Current | Moderate | Moderate | Moderate | Moderate | Strong | Strong | Moderate | Moderate | Gentle | Gentle | Moderate | Moderate |
Your chances of seeing each animal
Trinidad Motmot
Last confirmed Jul 7, 2026 · 30 records
Very likely
Most dives
Rufous-Vented Chachalaca
Last confirmed Jul 6, 2026 · 19 records
Very likely
Most dives
Anhinga
Last confirmed Jun 1, 2026 · 37 records
Very likely
Most dives
Tropical Mockingbird
Last confirmed Jul 7, 2026 · 26 records
Very likely
Most dives
Boulder brain coral
Last confirmed Aug 6, 2025 · 1 records
Likely
About 6 in 10 dives
Spotted eagle ray
Last confirmed Mar 1, 2026 · 3 records
Likely
About 6 in 10 dives
Nurse shark
Expected
Known here, not yet in recent logs
Creole wrasse
Expected
Known here, not yet in recent logs
Gear