
Dissei Island Reef
Dahlak Archipelago · Eritrea
Dissei Island is one of the most significant sea turtle nesting beaches in the entire Red Sea, and the reef that encircles it is equally remarkable. Hawksbill and green turtles nest on the island beaches from April through August, and the same individuals that emerge onto the sand are found resting and feeding on the adjacent reef throughout the year. The reef structure is a classic Red Sea fringing system: a shallow back reef terrace gives way to a steep front slope dense with coral down to 20 m. Because Dissei sits within the Dahlak Archipelago marine area and receives almost no recreational diving pressure, the turtles here are completely unafraid of divers and extraordinary close encounters are routine.
Conditions
Depth
3 to 22 m
Open water and up
Current
Usually still
Can pick up on the edge
Visibility
8 to 15 m
Clearest in the calm season
Water
23 to 32°C
shorty
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 24 | 23 | 24 | 26 | 28 | 29 | 30 | 30 | 29 | 27 | 25 | 24 |
| Vis (m) | 15 | 15 | 15 | 12 | 10 | 8 | 8 | 8 | 10 | 15 | 15 | 15 |
| Current | Gentle | Gentle | Gentle | Still | Still | Still | Still | Still | Still | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Common Hoopoe
Last confirmed Mar 31, 2026 · 1 records
Rare
Now and then
Hawksbill Sea Turtle
Expected
Known here, not yet in recent logs
Green Sea Turtle
Expected
Known here, not yet in recent logs
Spinner Dolphin
Expected
Known here, not yet in recent logs
Whale Shark
Expected
Known here, not yet in recent logs
Gear