Circular walks visiting Porthmeor Cove

The beach at Porthmeor Cove, Cornwall

Porthmeor Cove is a Site of Special Scientific Interest due to its geology. In fact it is cited as one of the most important geological locations in Southwest England. It lies on the boundary of the West Penwith granite and the effects of the molten granite intruding into the surrounding rocks can be seen quite clearly here as the granite is a light colour and the surrounding slate is much darker. Along one side of the cove, a round area of granite can be seen, completely surrounded by darker rock. This is known as a cupola, where the blob of granite rose up from below rather like in a lava lamp. Leading from this are thin bands where the molten granite forced its way along cracks in the bedrock.

The beach name is easily confused with Porthmeor beach at St Ives. This one is between Zennor and Morvah.

  • 4.2 miles/6.8 km - Moderate-strenuous

    Rosemergy to Gurnard's Head

    Carn Galver Engine Houses

    Rosemergy to Gurnard's Head

    4.2 miles/6.8 km - Moderate-strenuous

    A circular walk along the coast past the towering cliffs of Bosigran Castle via the white sand and huge boulders of Porthmeor Cove to the site of an Iron Age fort on Gurnard's Head, returning from the Gurnard's Head pub via the ancient Zennor Churchway.

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