The four stupendous playgrounds at Pier 6 in Brooklyn Bridge Park are every kid’s dream. Swing Valley transform the standard playground swing with 10 different swing sets, Tarzan ropes, baby swings, and double-seaters. The Water Lab let’s kids splash around in a moat, fountain mound, and wading pool. In Slide Mountain, they can zip down a 13-foot winding tube slide, and in Sandbox village, they can create entire worlds in the 6,000 square foot sandbox. And parents can feel good about bringing their kids to play here: most of the materials are sustainably harvested or recycled, and all of the structures are hand-crafted from wood, with naturally-based textures. You can learn more about the Brooklyn Bridge Park’s green practices here.