Time Out says
Meet at the Grand Army Plaza entrance, Flatbush Ave at Plaza St West.
Subway: 2, 3 to Grand Army Plaza.
Bring your wheels (bikes or skates) and lights for the Prospect Park Moonlight Ride, which occurs on the second Saturday of every month. This scenic tour of the park's sprawling, 526-acre terrain takes you past a ravine, waterfalls and the illuminated boathouse. (If there's rain at 8:45pm, the ride is canceled.)