Camping Uk

I live in th west midlands and want to go camping, where are the best camping sites in the UNITED KINGDOM? for tents, not caravans or mobile houses.

thank you

We are going to South of France (in May) in a rented 4 birth motorhome via the ferry. myself, my husband and our 2 kids, 3 years and 4 months, both boys for a week.

We have only ever been on a conventional holiday ie. to Spain on a plane before, never been camping! Does anybody have any hints and tips for us, as in -

Good ideas to keep kids entertained,
Any good places to visit (we have a planned stop at Euro Disney)
Anything obscure to take with us!
Any particular routes that are particularly nice.
Or any good camping sites a) in or around Paris and b) South France?

Helllo ,
Could any 1 tell me some good camping sites for tents please
where they do them all over the UK Thankyou x