
Shark Island
Kosrae · Federated States of Micronesia
Shark Island is a submerged reef pinnacle rising to within 8 meters of the surface off Kosrae's northeast coast, where the convergence of two current channels creates a perpetual fish soup that attracts grey reef sharks and Napoleon wrasse in exceptional concentrations. The top of the pinnacle is blanketed in a mosaic of hard corals that scientists have cited as among the highest-coverage reefs in FSM, with virtually no bleaching scars visible. Schooling jacks and fusiliers sweep through the water column in synchronised baitball formations whenever a current is running.
Conditions
Depth
8 to 35 m
Advanced depths
Current
Usually gentle
Can pick up on the edge
Visibility
25 to 40 m
Clearest in the calm season
Water
27 to 30°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 |
| Vis (m) | 15 | 15 | 20 | 20 | 25 | 25 | 25 | 20 | 20 | 15 | 15 | 15 |
| Current | Strong | Strong | Moderate | Moderate | Gentle | Gentle | Gentle | Moderate | Moderate | Strong | Strong | Strong |
Your chances of seeing each animal
Tracey'S Damselfish
Last confirmed Apr 9, 2026 · 11 records
Sometimes
About 1 in 3 dives
Grey Reef Shark
Expected
Known here, not yet in recent logs
Napoleon Wrasse
Expected
Known here, not yet in recent logs
Bigeye Trevally
Expected
Known here, not yet in recent logs
Whitetip Reef Shark
Expected
Known here, not yet in recent logs
Giant Carpet Anemone
Expected
Known here, not yet in recent logs
Orangefin Anemonefish
Expected
Known here, not yet in recent logs
Caroline Islands Swiftlet
Expected
Known here, not yet in recent logs
Gear