Fodor's Expert Review East River State Park
Williamsburg
City Park
Free
Cherished by residents for its grassy knolls and superb Manhattan views, this park contains vestiges of the 19th-century dock that once occupied these 7 acres. On Saturday, more than a hundred vendors sell artisanal goods at the Smorgasburg open-air market (see Chapter 8, Park Slope and Prospect Park, for full listing). The park can get crowded on summer weekends, so don't be surprised if you find yourself scavenging for an open patch of grass.