9 Super Fun Water Parks, Slides, and Pools on Long Island Submitted by Lisa Mancuso on Fri, 05/26/2017 - 3:00pm Slip-slidin’ away! There are few better ways to stay cool this summer on Long Island than to head down a slippery water slide, splash around in a refreshing swimming pool, or get drenched at a water park. That's why we invite you to check out our list of the hottest spots on Long Island where kids and adults can stay cool on even the most sweltering summer days. Check websites for rates and hours. All town pools are open to nonresidents, but they might have to pay a higher entry fee. Find more fun in our Theme Parks Guide or our Parks & Playground Guide for LI Families. Did we mention the Besties are here? The Bestie Awards is our reader voting contest celebrating small, local businesses that make parenting on Long Island so wonderful. Help us choose our finalists by shouting out your favorite places to make, do, eat, learn, and play. Nominate your Besties now. Read more.