Batu Angus
Ternate · Indonesia
Batu Angus — meaning 'burned rock' — is a lava field created by Gamalama's 1673 eruption that extends beneath the surface as a dramatic geological landscape. Volcanic boulders encrusted with tunicates and hydroids shelter pygmy seahorses, ghost pipefish, and frogfish. The black lava substrate makes colours pop for macro photography and the site is rarely dived.
Conditions
Depth
5 to 28 m
Open water and up
Current
Often strong
Can pick up on the edge
Visibility
8 to 18 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) | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 |
| Vis (m) | 12 | 12 | 12 | 10 | 10 | 8 | 8 | 8 | 10 | 12 | 12 | 12 |
| Current | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate | Strong | Strong | Moderate | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Ghost Pipefish
Last confirmed Mar 15, 2025 · 1 records
Likely
About 6 in 10 dives
Pygmy Seahorse
Expected
Known here, not yet in recent logs
Painted Frogfish
Expected
Known here, not yet in recent logs
Tunicate
Expected
Known here, not yet in recent logs
Hydroid
Expected
Known here, not yet in recent logs
Lionfish
Expected
Known here, not yet in recent logs
Octopus
Expected
Known here, not yet in recent logs
Black Coral
Expected
Known here, not yet in recent logs
Gear