there is camping but its not on site. Its on the other side of the fence, heres a link to there site:

http://www.llandowcaravanpark.com/

Basically it £10 a tent per night. Thats based on 2 adults so £5 each isnt bad at all.

I did have to laugh at the description of the area though:
"Our sheltered and secluded park is set in the heart of the beautiful Vale of Glamorgan , situated half way between the historical town of Llantwit Major and the quaint market town of Cowbridge"

!ITS GOT A RACE CIRCUIT NEXT TO IT!