
Fusilier Reef
Osezaki · Japan
A broad sloping reef from 8 to 28 metres where Suruga Bay's productive currents concentrate enormous schools of yellowtail fusiliers that at peak season number in the tens of thousands. The school forms a shimmering curtain that divers can enter, surrounded by fish on all sides, while yellowfin tuna and amberjack patrol the school's periphery making high-speed predatory runs. The reef base hosts encrusting sponges, sea fans, and occasional octopus in the rubble. This is the best site for wide-angle photography when the school is thick, typically April through June and September through November.
Conditions
Depth
8 to 28 m
Open water and up
Current
Can be moderate
Can pick up on the edge
Visibility
8 to 15 m
Clearest in the calm season
Water
13 to 27°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 14 | 13 | 14 | 16 | 18 | 20 | 22 | 24 | 23 | 20 | 17 | 15 |
| Vis (m) | 10 | 10 | 12 | 12 | 12 | 10 | 8 | 6 | 10 | 12 | 12 | 10 |
| Current | Gentle | Gentle | Moderate | Moderate | Strong | Strong | Moderate | Gentle | Moderate | Moderate | Moderate | Gentle |
Your chances of seeing each animal
Japanese Angelfish
Last confirmed Oct 27, 2025 · 1 records
Likely
About 6 in 10 dives
Giant Pacific Octopus
Expected
Known here, not yet in recent logs
Sea Fan
Expected
Known here, not yet in recent logs
Encrusting Sponge
Expected
Known here, not yet in recent logs
Yellowtail Fusilier
Expected
Known here, not yet in recent logs
Yellowfin Tuna
Expected
Known here, not yet in recent logs
Greater Amberjack
Expected
Known here, not yet in recent logs
Japanese Jack
Expected
Known here, not yet in recent logs
Gear