Thirteen Mile Reef
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
Thirteen Mile Reef lies off Argyll and Bute on Scotland's west coast, in the waters around the Sound of Jura and Firth of Clyde area. It reaches a maximum depth of around 40 metres, making it a dive suited to those comfortable with deeper conditions typical of this part of Scottish coastal water.
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.
European Edible Sea UrchinEchinus esculentusReported here · unconfirmed
Common Sea StarAsterias rubensReported here · unconfirmed
Spiny StarfishMarthasterias glacialisReported here · unconfirmed
Velvet Swimming CrabNecora puberReported here · unconfirmed
Common Hermit CrabPagurus bernhardusReported here · unconfirmed
European Green CrabCarcinus maenasReported here · unconfirmed
European ascidianAscidiella aspersaReported here · unconfirmed
Rosy Feather StarAntedon bifidaReported 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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