We stayed here mid September, living only an hour away we have not come to the site before as it's always full at the weekends and we tend to go further away.  I would highly recommend the site. The wardens are fabulous, the site is clean and tidy. We rented bikes at Grafham and had a wonderful time cycling around and stopping off at the pub on the other side which had excellent food and service, definitely recommend!  Really wonderful site, shame the pool isn't open a bit longer in the summer and the site isn't year round as there is plenty to do here.