We nearly stayed atTrevaylor Caravan & Camping Park at Bottalack but all the hard standings were booked last weekend. They are open all year and the facilities looked decent. Couple of pubs in walking distance too - not that that made us check out the site...
Anyway because there weren't any hard standings we ended up at Ayr in St Ives which was excellent. Great views down to the beach and brand new facilities. Even had underfloor heating in the showers and not too expensive.
We didn't find many sites open though although we weren't looking too hard.