if visiting West Cornwall, try Porthcurno - great beach and also the Telegraph Museum mostly situated in the WW2 underground tunnels. Mostly technical historic telegraph equipment but a few home front WW2 items including a bomb that fell near the tunnels shortly after they had been completed. Also one of the pillboxes built to protect the telegraph station and some of the immediate views. See also Tigbrand before we fired him across the estuary - you wouldn't want to see a photo of him after he had landed!