I found a lovely park just forty minutes north of the City with several miles of intertwining trails. Cranberry Lake Preserve is located in North White Plains, adjacent to the Kensico Reservoir. The well-marked trails wind through a fairly young woods, along stone walls, and around ponds and swamps. There are hills, but nothing too strenuous. The exception, is the loop around the quarry, which does include a bit of a rock scramble and isn't as well marked as the others.
I eventually turned right onto a white-blazed trail, then right onto a yellow-blazed trail, which brought me to a picnic area and the paved road that runs into the park, which I followed back to where I parked.
All and all, a nice way to spend a rainy fall afternoon. I will keep this park in mind for snowshoeing, but think I would avoid it in the summer months, since the swampland is a guarantee for mosquitoes.