We love going to Lake George RV Park. It's got large sites, virtually all blacktop roads, bike trails, dog park, indoor pool, outdoor pool and another (new) water park with zero-entry pool. Great store on-site, Movie theater & shows/entertainment, tennis courts, ball park, paddleball courts. Pretty close to Lake George Village and the lake, but not on it (about 5 miles).
My only minor issue was with WIFI on one trip, but most of the time it's pretty good for a campground.
We try to get there once or twice a year.
Great campground, though spaces are small, place is clean, nice pool and staff is very friendly, helpful and responsive! It's only about a mile from the beach. We rode bikes to Salisbury Beach and my young adult son rode his longboard to the beach. We thought the small campsites would bother us, but after one day we got used to it and it was fine. Neighboring campers were all very friendly. We'd definitely go back again!