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
Happy Arch (ハッピーアーチ) is a shore-entry reef on Okinoerabu in Kagoshima Prefecture, with a typical depth of around 18 m. The dive passes through a rock arch, with dense fish life, species endemic to the Ryukyus and juvenile Napoleon wrasse. Intermediate and above.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Praealticus tanegasimaeReported here · unconfirmed
Whitetail SurgeonfishAcanthurus thompsoniReported here · unconfirmed
common hairy crabPilumnus vespertilioReported here · unconfirmed
Hawaiian Convict SurgeonfishAcanthurus triostegusReported here · unconfirmed
Whitespotted FrillgobyBathygobius coalitusReported here · unconfirmed
Redtail ParrotfishChlorurus japanensisReported 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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