Clarence Fahnestock State Park
A large Hudson Highlands park with a swimming beach on Canopus Lake, over 50 miles of trails, and a campground. The beach is family-friendly with a sandy shore and lifeguards. The Appalachian Trail runs through the park and shorter nature loops are available for younger kids. The park encompasses 14000 acres of forests, ponds, and streams with excellent birding and wildlife viewing. Canopus Lake also has boat rentals. It is a perfect weekend destination that combines swimming, hiking, and camping.