Up your playground party game by reserving the park house at Riverside Park’s beloved Hippo Playground. The room, which has sinks, a sound system and a microwave, is the perfect indoor oasis for parents who provide the pizza, cake or other refreshments on low-to-the-ground tables for young kiddos. If it’s a nice day, you might find it hard to get everyone to come inside from the fun they’ll be having on the swings, jungle gym and climbing all over the various hippos. On warm days be sure to pack swimsuits; the kids won’t be able to resist the sprinklers. All ages.