We liked Clumber on our first visit and so returned about a year later.  The site is spacious, with lovely walks straight from site through several gates around the site, its great for dogs.  There is a very large, easily accessed playpark for kids.  As its nice and open you can see the playpark from quite a distance so don't need a pitch right beside it to keep an eye on your kid.  Clumber Park itself is well worth visiting and is an easy walk through the forest.  My gripes with this site are the shower block is a little tired compared to some sites and probably needs an update.  Also we were a little bemused by the warden.  We have a continental motorhome and usually park on the pitch so our awning is the same way as everyone elses.  We parked like this, which was to the left of the pitch marker with a view to putting the awning up to the right of the pitch marker.  There was a good 5m between our motorhome and the neighbours awning.  The warden made us move so the motorhome was to the right of the pitch marker (exactly the position the awning would have been) and the we had to put the awning up exactly where the motorhome had been, but facing in to next doors awning.  We actually didn't mind as the aspect for the sun was better this way round, but seemed a bit mad.  Oh well, rules are rules!  We probably will visit again, but it is losing its shine a bit.