Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
Nosy Mitsio is an island group in the Diana region off the northwest coast of Madagascar, north of Nosy Be in the Mozambique Channel. Rock Sebastien lies among the scattered granite outcrops and islets around this archipelago, typically accessed by boat from operators based in the Nosy Be area.
AI overviewMarine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Finger CoralAcropora humilisReported here · unconfirmed
Brown Staghorn CoralAcropora muricataReported here · unconfirmed
Sky Blue PhyllidiaPhyllidia coelestisReported here · unconfirmed
Ocellate PhyllidiaPhyllidia ocellataReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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