Glassan Rock
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
Glassan Rock lies off Inishmore, the largest of the Aran Islands, in Galway Bay off the coast of Connacht. The waters around Inishmore are exposed to the open Atlantic, with rocky reefs and swell typical of this stretch of Ireland's west coast.
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.
Grey SealHalichoerus grypusReported here · unconfirmed
Compass JellyChrysaora hysoscellaReported 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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