Coney island has the largest pool that I know of in the area. It is perfect for families - adults have a large deep area to swim in, and kids have their own shallower end to enjoy. There are also slides and rides outside of the waterpark area, vending stand and plenty of space to lounge around the pool. Usually on the weekends it gets very crowded - bring your own chair if you don't want to lay on the grass. Come early to get a nice spot.
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