If Weymouth is not too far for you, try Rosewall Camping. They have a very large camping site and we def' recommend it. Its Bournmouth side of Weymouth. Search Weymouth Camping and you should find their web site. Good hunting and have a great weekend.
------------- Why yearn for tomorrow when you can have chocolate today.
Yes, I think you can ignore the reference to ten pitches in the Steeple Leaze listing.
(Just a thought - I'm assuming you're looking for tent sites (as you've posted on Camping under canvas) but any caravanners reading this should note that Woodyhyde doesn't take caravans (awkward access), nor, officially at least, does Steeple Leaze.)