400 Carroll St., nr. Bond St.; no phone
Offering the same alfresco industrial grooviness as P.S. 1’s Warm Up party, but on a much smaller scale (and sometimes with water balloons), Bklyn Yard makes excellent use of its grassy location alongside the Gowanus Canal. Kids are encouraged to run amok, throw pebbles into the water, and try out some next-gen dance moves. On this season’s schedule: free clothing swaps, food-truck festivals, and the weekly Sunday Best parties with D.J.’s like Mr. Scruff and 17-year-old phenom Kyle Hall spinning techno, house, and disco. Get there early, before Red Hook vendor Margarita runs out of huaraches and tacos.