Conditions & tides
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Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
Grand Banc lies off the coast of northern Madagascar, in the waters around Nosy Be, and is set up as a wall dive. It reaches a maximum depth of around 17 metres and is generally considered an intermediate dive. Divers have reported fusiliers, mackerel, and snapper moving along the wall, along with occasional hammerhead sharks passing through.
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.
FusilierFusilierReported here · unconfirmed
SnapperSnapperReported here · unconfirmed
Hammerhead sharkHammerhead sharkReported here · unconfirmed
Green Sea TurtleChelonia mydasReported here · unconfirmed
Bluespotted Fantail RayTaeniura lymmaReported here · unconfirmed
MackerelMackerelReported 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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