Porthnanven Beach (St Just) (Cot Valley)

Porthnanven Beach (St Just) - Cornwall
© Maurice D Budden and licensed for reuse under this Licence

Known locally as Cot Valley, Porthnanven is a rocky little cove in the far west of Cornwall near Cape Cornwall.
The beach lies at the end of a long, winding valley which passes from lush greenery to mining-scarred terrain. Just off the coast here are the Brisons - two large islets which are home to numerous sea birds.

What makes Porthnanven special are the boulders that make up the foreshore. These huge granite rocks have been worn smooth over the years with many now almost spherical. So popular were these rocks that the council had to stop people removing them to use as garden ornaments. 

Cot Valley lies on the Southwest Coast Path, and is a popular stop off for walkers.

Also known as:

Cot Valley

Type of beach


Lifeguard service


Dogs friendly beach?

We do not have information on this beach but restrictions may apply (usually from Easter until the end of Summer)

Cornwall dog friendly beaches »


  • Rock pooling

Nearest town



TR19 7NP

OS grid ref.

SW 3558 3088


Parking available

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Porthnanven Beach (St Just) Reviews

Beautiful spot for swimming

Sep 08th 2021

Beautiful little cove. If you can clamber over the boulders, then access into the water is great. Smooth sand and easy for swimming.
Beautiful spot to watch the sunset