
Ervatão Reef
Boa Vista · Cape Verde
On Boa Vista's exposed eastern coast, Ervatão Reef is a series of submerged rocky ridges dropping from 5 m to 30 m, best known as a loggerhead turtle stronghold in an island group that hosts one of the largest nesting populations of this species in the eastern Atlantic. Hawksbill turtles join the loggerheads around the reef's deeper sections while shoals of blacktip reef sharks patrol the ridge tops and nurse sharks rest in the sand channels between the spurs. The site's orientation into the Atlantic swell means current is a constant companion but also concentrates the plankton that keeps the reef productive.
Conditions
Depth
5 to 30 m
Open water and up
Current
Usually gentle
Can pick up on the edge
Visibility
15 to 25 m
Clearest in the calm season
Water
21 to 28°C
shorty
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 22 | 21 | 21 | 22 | 23 | 24 | 25 | 26 | 26 | 25 | 24 | 23 |
| Vis (m) | 10 | 10 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 10 | 10 |
| Current | Moderate | Moderate | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate |
Your chances of seeing each animal
Kentish Plover
Last confirmed May 27, 2026 · 17 records
Very likely
Most dives
Loggerhead Turtle
Last confirmed Feb 2, 2026 · 12 records
Very likely
Most dives
Brown-Necked Raven
Last confirmed Jun 29, 2026 · 10 records
Very likely
Most dives
Nurse Shark
Last confirmed Jan 11, 2026 · 1 records
Likely
About 6 in 10 dives
Sanderling
Last confirmed Jan 12, 2026 · 9 records
Likely
About 6 in 10 dives
Hawksbill Turtle
Expected
Known here, not yet in recent logs
Gear