Have a look at the Ravine, “the deep-set forested heart of Prospect Park…Here I dragged Spouse (just off the subway) and Child for a sunset walk; the area is so isolated and remote that I have been reluctant to explore it alone. (Probably a wise choice, although the handful of fellow walkers we met were all peaceable.) We’d only gotten into these depths once before, years ago, and I vaguely remembered a rustic shelter and a waterfall as if I’d dreamed them. And indeed, once we left the well-signed precincts for the woods, we became delightfully lost…”–A Year in the Park