My wife and I took 3 of the grandkids with us to Bethpage Camp Resort.
This is a wonderful campground. We got a courtesy escort to our pull-thru campsite. They have lots of things to do for everybody. They have a nice lake with a beach, 2 swimming pools and an awesome waterpark. There is also free cable tv and wifi throughout the campground. Amenities also include a mingolf course and ice cream stand, a nice campstore, pavilion, snack bar, train rides and hayrides.
The hosts were very friendly and helpful. It is also just a few miles from the Chesapeake Bay. We recommend it!