
San Miguel Bay Drop-Off
Donsol · Philippines
San Miguel Bay's outer reef edge plunges into a dramatic wall draped with gorgonian sea fans and black coral trees that attract schooling hammerheads from November through February. The deep blue water column is reliably patrolled by dogtooth tuna and rainbow runners while the wall itself is encrusted with soft corals in saturated purples and oranges. Night dives here reveal sleeping sea turtles, Spanish dancer nudibranchs, and octopus on the hunt across the wall's intricate topography.
Conditions
Depth
8 to 40 m
Advanced depths
Current
Usually gentle
Can pick up on the edge
Visibility
15 to 30 m
Clearest in the calm season
Water
24 to 30°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 24 | 24 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 25 | 24 |
| Vis (m) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Current | Moderate | Moderate | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate |
Your chances of seeing each animal
Chestnut Munia
Last confirmed Jun 30, 2026 · 6 records
Likely
About 6 in 10 dives
Guaiabero
Last confirmed Mar 8, 2026 · 1 records
Rare
Now and then
Brown-Breasted Kingfisher
Last confirmed Sep 20, 2025 · 1 records
Rare
Now and then
Dogtooth Tuna
Expected
Known here, not yet in recent logs
Spanish Dancer Nudibranch
Expected
Known here, not yet in recent logs
Scalloped Hammerhead Shark
Expected
Known here, not yet in recent logs
Scale-Feathered Malkoha
Expected
Known here, not yet in recent logs
Luzon Hornbill
Expected
Known here, not yet in recent logs
Gear