Seopjikoji Arch
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
Seopjikoji Arch (섭지코지아치) is a natural rock arch below the Seopjikoji headland, south of Seongsan Ilchulbong on Jeju's east coast. It is dived by boat from Seongsan between 12 and 15 m, which makes it an easy dive with a distinctive swim-through.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Graceful CowriePurpuradusta gracilisReported 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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