Need a base camp RV park for touristing in NYC

Liberty Harbor is a BIG PARKING LOT with water/electric, but it is the closest to NYC, has easy train access. It has NO camping feel, so don't expect any of that. It is easy to get into the city and back out without having to ride a bus or train for over an hour.

So far, I've kept the fam away from there for about 4 years, but I figure next year is going to be a definite. I detest NYC and if I never had to go again, I'd be tickled.