Mewstone
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.
Dived here today? How were conditions vs. what we showed?
About this site
Mewstone, listed as Mewstone Ledges, is a large reef area to explore, a ten-minute RIB ride south of Plymouth and centred around 50°18.10 N, 4°6.28 W.
The dive is technical and reaches 40 metres. Tide matters here: dive around high water slack, entering the water about half an hour before high water, because tidal currents are strong on spring tides and shipping traffic uses the area. The seabed carries sea anemones, feather stars, Mermaid's glove sponge, antenna hydroids, purple jewel anemones and pink sea fans.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Common Sea StarAsterias rubensReported here · unconfirmed
Dead Man's FingersAlcyonium digitatumReported here · unconfirmed
Edible CrabCancer pagurusReported here · unconfirmed
Devonshire Cup CoralCaryophyllia (Caryophyllia) smithiiReported here · unconfirmed
Velvet Swimming CrabNecora puberReported here · unconfirmed
Sea BeardNemertesia antenninaReported 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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