
Les Mamelles Reef
Senegal · Senegal
Stretching beneath the volcanic twin hills of Les Mamelles just off Dakar's coastline, this Atlantic reef system surprises divers with dense schools of barracuda that spiral overhead in silver tornados. Broad sandy plateaus give way to reef ledges where Atlantic grouper hold court alongside stingrays gliding over the rubble, and resident nurse sharks rest motionless in the shadows of overhangs. The strong upwelling from deeper Atlantic water brings exceptional nutrient loads, fuelling dense baitfish clouds and the predators that follow them.
Conditions
Depth
5 to 30 m
Open water and up
Current
Usually still
Can pick up on the edge
Visibility
6 to 12 m
Clearest in the calm season
Water
19 to 29°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 20 | 19 | 19 | 20 | 21 | 23 | 25 | 26 | 26 | 25 | 23 | 21 |
| Vis (m) | 15 | 15 | 15 | 12 | 10 | 8 | 6 | 6 | 8 | 10 | 12 | 15 |
| Current | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle | Still | Still | Still | Gentle | Moderate | Moderate |
Your chances of seeing each animal
Pied Crow
Last confirmed Jun 9, 2026 · 26 records
Very likely
Most dives
African Silverbill
Last confirmed Jun 11, 2026 · 25 records
Very likely
Most dives
Nurse Shark
Last confirmed Oct 15, 2025 · 2 records
Likely
About 6 in 10 dives
Great Barracuda
Expected
Known here, not yet in recent logs
Atlantic Grouper
Expected
Known here, not yet in recent logs
Eagle Ray
Expected
Known here, not yet in recent logs
Gear