Passe En S
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.
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About this site
Passe En S is one of the S-shaped passages cutting through Mayotte's barrier reef, the French territory lying in the Mozambique Channel between Madagascar and mainland Africa. These passes are a defining feature of Mayotte's reef system, channeling water between the lagoon and open sea. Divers here have reported a strong reef-fish community typical of the surrounding coral, including brown tang, eclipse parrotfish, eyeline surgeonfish, humpnose bigeye bream, Indian bullethead parrotfish, lined bristletooth, longbarbel goatfish, tricolour parrotfish, and whitetail surgeonfish.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Humpnose Bigeye BreamMonotaxis grandoculisReported here · unconfirmed
Indian Bullethead ParrotfishChlorurus sordidusReported here · unconfirmed
Longbarbel GoatfishParupeneus macronemusReported here · unconfirmed
Whitetail SurgeonfishAcanthurus thompsoniReported here · unconfirmed
Lined BristletoothCtenochaetus striatusReported here · unconfirmed
Brown TangZebrasoma scopasReported here · unconfirmed
Tricolour ParrotfishScarus tricolorReported here · unconfirmed
Eclipse ParrotfishScarus russeliiReported here · unconfirmed
Eyeline SurgeonfishAcanthurus nigricaudaReported 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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