Swansea Bay Honeycomb Reefs 3 – Boulders with sand tubes made by the honeycomb worm (Sabellaria alveolata) at low tide in Swansea Bay 1st February 2018.
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Swansea Bay Honeycomb Reefs 3 – Boulders with sand tubes made by the honeycomb worm (Sabellaria alveolata) at low tide in Swansea Bay 1st February 2018.