We have all heard about Black Holes in outer space, but this is a different kind of black hole. There are many of these black holes in Central Park. Some of these black holes contain all sorts of gross wet and wonderful animals (such as worms, slugs, and grubs). Some contain various degrees of rotting wood and other vegetation. Some are just nice dry black holes. I'm hoping this is just one of those black holes for you on the day you find this cache!
The best place to park is at the Swangard Stadium parking lot in the north or on Patterson Street on the east side.
I hope you enjoy your walk through the woods!
Good luck.