The word that came to mind most often, as I was strolling around the grounds, was "unspoiled." They're probably a bit less fancy, more basic, than other mansion grounds, but they're very well maintained, with enough signs to be informative. The gardens were nice and also well maintained, but not fancy - some signs as to the varieties of flowers and plants would be nice. There's several places to the south of the house offering scenic views of the Hudson River, and the Catskills beyond that. Mansion tours were going on while I was there.
A sign at the entrance says that paid parking for 2020 began on 6/6, where you pay the fee of $5 at one of the machines at either end of the parking lot. Unfortunately, it's not $5, it's $6 now. Rest rooms are available behind the parking lot, and there's a fairly large area behind it and to the south for sitting, picnics, and light recreation (e.g., folks were throwing frisbees). Dogs are permitted on a leash.
Even on a nice day on a weekend, there's plenty of space for everyone. Though I imagine this is a very popular site to visit during fall foliage season. read more