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
Horse Island lies off the coast of County Mayo, in the province of Connacht on Ireland's Atlantic seaboard. The site is a wall dive, dropping along a rock face typical of this exposed stretch of the west coast. Waters here are usually reached by boat from harbours along the Mayo coastline.
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.
Atlantic MackerelScomber scombrusReported here · unconfirmed
Veined SquidLoligo forbesiiReported here · unconfirmed
Atlantic Horse MackerelTrachurus trachurusReported 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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