RV park for summer near lake in PA/NJ suggestions

My husband and I fulltimed for 4 years and are now happily living in a house in a community just outside Hilton Head. We have taken many extended trips over the last few years, but were thinking of renting a site for the summer near our kids who live in Baltimore and Montclair NJ.
We have a 32' Class C and would like a nice place, maybe on a lake, with a pool. Anyone have a suggestion? Maybe Poconos, maybe northern NJ, etc.