Treyarnon Bay

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Just a short trek from the better-known Constantine Bay, the sheltered cove of Treyarnon bay awaits. With the Trethias Isanld to the south and Treyarnon Point to the north, the beach is sheltered from the stronger south-westerlies that occasionally batter the Cornish coast. The expanse of soft golden sand makes this a favorite spot for families and ideal for impromptu cricket matches at low tide. Skirted by a an array of magnificent rock pools at the top of the beach, Treyarnon offers a wide spectrum of marine flora and fauna – perfect for mini David Attenboroughs! Look out for the large, pool-sized tidal lido hidden in the rocks. A long wall of concrete has been built to maintain the water level inside the natural rock pool throughout the tide. A deep plunge pool can also be found just below the pool – an exciting jump spot for the daring. Fantastic coasteering routes can be found around the island, including the deep gulley that separates the island from the mainland. The tide can rush in very quickly around the island and can often leave people cut off from the mainland – proceed with caution. On a very low tide a penetrating cave can be navigated underneath the entire headland by entering via the gulley and emerging in the adjacent cove. Know your limits and only attempt this during an ebbing tide.


Head towards Porthcothan and tae the left turn onto a minor lane sign posted Treyarnon. Park in the car park down at the bay. Be aware that this car park can get full quickly on busier days.

Sat Nav Postcode: PL28 8JR

Lat/Lon: 50.526387, -5.023981

Around the Corner

Fox Cove 0.7km

Porthcothan Bay 1.8km

Harlyn Bay 2.4km