Watkins Glen ny

I've stayed at the state park. Some of the sites are smallish, some are quite large indeed, and I don't recall anything about the road and the loop I was on being particularly tight for most any RV. Their maximum RV lengths in some cases seemed unnecessarily conservative (though probably not all cases). If memory serves, I stayed at site 292 which is advertised as a 30' site but in reality is huge.

For (many of) the New York public campgrounds, the campadk.com campsite photo database is a great resource.

I've nothing against the other campgrounds in the area--I just have no first-hand experience with them.