Hi Mandy,
We went to Waterrow for our first ever caravan outing nearly a year ago.
The warden was friendly and helpful and helped us back our 7m 'van onto the pacious pitch.
There was plenty of room on the pitch for the car and caravan, with water and waste points close by.
The facilities were absolutely immaculate and, as Ray said, comprise of a series of portakabins housed inside a barn.
As well as the toilets and shower blocks, there is a small library (well - a bookcase!), as well as local information, laundry facilities, freezer and washing-up sinks.
There are footpaths from the site and, again as Ray pointed out, there's a well-regarded pub down the road (we didn't go) but the site itself is a bit remote from everywhere.
But, if you have a caravan with you you'll have a car with you!
Really, it was very nice.