Silver Birches seems to be the only site of the four which is still open. It's a commercial site with full facilities, but costs £9 or so night - with an extra charge if there are more than two people.

There is supposed to be another (more basic - ie CL level) site on Barrow Road though, but I can't find a phone number - any ideas Skipjack ?   I'll have a look in my Caravan Club book.