Olaf page with the 6-20 m rocky ascent, night-dive appeal and fish list.
Rocky ascent between Nosy Be and Sakatia
Boat timing and entry placement are easiest with a local Nosy Be operator.
Olaf Sakatia is a boat-access rocky ascent between Nosy Sakatia and Nosy Be that works especially well as a night or training dive. The route climbs from the deeper edge toward a shallow plateau, so it stays easy to read while still packing in macro life and schooling fish. It suits divers who want a calm, close-to-shore site with a lot of small-scale detail rather than a big-wall profile.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
6m - 20m
Depth Note
The rocky ascent runs from about 20 m up to 6 m on the reef edge.
Best Season
Year-round
Typical Conditions
Sheltered rocky ascent with strong macro, a shallow plateau and variable visibility.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Keep buoyancy tight on the rocky ascent and give the macro life space. Night runs need slow finning and a disciplined turn point.
Access Restrictions
Boat access is the normal way in, with the site sitting between Nosy Be and Nosy Sakatia.
Legal Notes
Treat the reef and small-life habitat carefully and follow local marine rules.
Community notes to help plan your visit.
Scuba Diving
A slow rocky-ascent dive with coral and detrital patches that reward careful looking.
Freediving
Not the primary use case; the site is better as a slow scuba or training dive.
Snorkeling
The shallows are interesting, but the site is primarily a scuba dive.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Olaf page with the 6-20 m rocky ascent, night-dive appeal and fish list.
Describes Olaf as a macro-rich site on the plateau in front of Sakatia.
Notes Olaf as a small-life site with nudibranchs, lobsters, crabs, shrimps and a manta-ray encounter.
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Guide-led macro diving at Mireille

Boat-access coral reef near the lodge with turtles and nudibranchs

Sakatia: sheltered reef for turtles and macro.

Sakatia Reef is a calm Nosy Sakatia macro reef dive.

Nosy Be macro reef with soft coral and current.

Nosy Sakatia plateau dive with coral formations and drift.