I'm looking for a campsite in Devon or Cornwall (not to far west) that's very close to a nice beach. Any recommendations of the? Doesn't need to be close to climbing but that could be a bonus.
Possibly too far west for you, but Blue Hills campsite, above Trevellas Porth and a boulder hop at low tide away from Trevaunance Cove beach (St Agnes) is very nice.
Come to Guernsey instead - it's quicker to get here than it is to Cornwall for you, and we've campsites by beaches. - Le Vaugrat being the nearest. Plenty of climbing too.