Manado
Indonesia · North Sulawesi
Manado Bay and its satellite islands deliver some of Indonesia's most diverse reef diving, from sheer volcanic walls draped in soft coral to rubble-strewn macro hotspots. Pygmy seahorses, nudibranchs, and schooling pelagics share the same reefs, making every dive multilayered.
How this reef is doing
ⓘ How we measure thisReef state
Live coral covers 54% of this reef.
Coral cover
Fish life
Heat
Fishing
Open to fishing, and the water is busy.
Sources · MERMAID and the survey teams · Global Fishing Watch and reef gravity
Coral cover over time
Live coral cover, by survey year
Across 5 survey years from 2016 to 2025, live coral cover here has risen from 32% to 54%. Every point is a real survey reading, never a projection.
Live coral cover, percent by year
| Year | Coral cover |
|---|---|
| 2016 | 32% |
| 2021 | 71% |
| 2023 | 40% |
| 2024 | 53% |
| 2025 | 54% |
What you will see
20 species across the dive sites here
Sulawesi Lined Gliding Lizard
Seen 2 months ago
at Bangka Island
Least concern
Ashy Woodpecker
Seen 2 months ago
at Bangka Island
Least concern
Hair-Crested Drongo
Seen 2 months ago
at Bangka Island
Least concern
Green Sea Turtle
Seen 3 months ago
at Manado Tua Wall
Least concern
Redtooth Triggerfish
Seen 3 months ago
at Manado Tua Wall
Least concern
Yellow-Billed Malkoha
Seen 4 months ago
at Bangka Island
Least concern
Anna'S Chromodoris
Seen 4 months ago
at Manado Tua Wall
Napoleon wrasse
Seen 4 months ago
at Manado Tua Wall
Endangered
Alcala'S Chromodoris
Seen 4 months ago
at Manado Tua Wall
Bumphead parrotfish
Seen 4 months ago
at Manado Tua Wall
Vulnerable
Robust ghost pipefish
Seen 4 months ago
at Siladen Island
Least concern
Giant moray
Seen 4 months ago
at Manado Tua Wall
Least concern
Bargibant's pygmy seahorse
Seen Apr 2025
at Manado Tua Wall
Least concern
Clown triggerfish
Seen Nov 2024
at Bangka Island
Least concern
Chromodoris nudibranch
Seen year round
at Siladen Island
Denise's pygmy seahorse
Seen year round
at Siladen Island
Least concern
Mandarin dragonet
Seen year round
at Siladen Island
Least concern
Ornate wobbegong
Seen year round
at Bangka Island
Least concern
Reef manta ray
Seen year round
at Bangka Island
Vulnerable
Whale shark
Seasonal visitor
at Bangka Island
Endangered
