Wonderful Indonesia guide reinforcing the 15-30 m visibility band and the March-to-October best-time window.
Coral Mountain Bay
Colorful reef-current dive
About Coral Mountain Bay
Coral Mountain Bay is a colorful reef-current dive where the reef on the left shoulder is the main attraction and the fish traffic is the bonus. The site combines hard and soft corals, nudibranchs, and macro life with the chance of whitetip sharks and larger fish in moving water, so it works best for divers who want an active but not chaotic advanced reef. The slope-to-plateau shape gives it a more sculpted feel than a pure wall, and the clearer windows make the coral color pop. This is a polished Maratua reef dive, not a current-hook spectacle.
Research Estimate At Coral Mountain Bay
Conservative baseline from public research. No community dives logged yet.
Where Is Coral Mountain Bay?
Coral Mountain Bay Planning Details
Depth range, seasonality, and planning context.
Best Season
March to October, when seas are calmest and visibility is at its best.
Typical Conditions
A steep reef leads into a sandy plateau, with moderate current, strong visibility, and colorful coral structure on the left shoulder.
Safety & Access At Coral Mountain Bay
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Current can be present and may bring larger fish; plan the dive accordingly.
Access Restrictions
Boat access through the archipelago dive network is the practical route; treat it as an advanced reef dive, not a casual shore entry.
Local Intel For Coral Mountain Bay
Community notes to help plan your visit.
Scuba
Reef dive typically conducted with the left shoulder to the reef.
Freedive
The depth and current profile make this a scuba-first site rather than a freedive target.
Snorkel
The reef profile can be interesting from the surface on very calm days, but it is better known as a diver site than a snorkel stop.
Coral Mountain Bay Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Coral Mountain Bay.
Exposure Profile at Coral Mountain Bay
Directional shelter context for incoming swell.
Wildlife at Coral Mountain Bay
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Coral Mountain Bay
Community dive logs and visit reports for this site.
No Dive Logs Yet
Be the first to log a dive at this spot and share your experience!
Dive Spot Log Averages At Coral Mountain Bay
Average conditions based on logged dives & visits.
Coral Mountain Bay Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Coral Mountain Bay Guide - Sources and Updates
Last Updated
Research Sources
Derawan archipelago guide with the March-to-October calm/clear window and the broader resort-boat network.
Know this site? Improve Spot Details.





