Central Park’s oldest and largest playground is also one of its best, thanks a top-to-bottom renovation (it reopened in 2006) that cleverly connected it to Umpire Rock, the Manhattan schist outcropping behind it: Kids not only get to a scale stone pyramid but, after crossing a small bridge, an actual cliff, too. (Consider packing a lunch for a picnic on top). Colorful, rubber-topped humps change up the usual flat landscape and divide the area for smaller kids, complete with a dedicated tot water area and an enormous sandbox with a climbing net, from the main complex of tunnels, moats and bridges, and the bigger kids’ spray fountains. An old-school spot with a single metal slide and two popular tire swings on the far western edge is a sweet nod to the Central Park playgrounds of yore.