Went to Applewood Campsite which is next door to Banham Zoo, Nr Diss in Norfolk. Was a well laid out site, imagine a wheel with hedges for spokes so lots of privacy yet spacious too, six hookups per "spoke" if you know what I mean! We are proper campers, none of that namby pamby hook up stuff for us so we pitched up in the middle. Loads of room, great kids play area. Immaculate site, clean loos and showers, laundry too.
Pay once to go in the zoo (which is right next door so the donkey and tiger wake you up in the morning!) and then go in as many times as you like during your stay. We went in three times - lots to see and another fab playarea. We went in first thing and let the kids play on the stuff before the hoards arrived, me and DH sat and drank coffee from the lovely coffee shop and let them run!
All in all a great place to go.