We stayed at Lake Magic RV Resort in Clermont, Florida last march. It was a very nice park, nice large sites, concrete pad for the motorhome to sit on as well as beside it for table etc. and also allowed us to wash the motorhome and our toad on our site, which was nice after a messy drive down from Canada.
It's about 25 miles from Polk, Florida, according to Google map directions
Lake Magic RV Resort Reservations | Clermont Campgrounds
It's an Encore park, we don't belong to Encore or Thousand trails but the rates still did not seem to bad.
We would go back again if we were in that area.