Smith Point Beach is Suffolk County's largest oceanfront park. With a wide expanse of soft white sand, the somber yet beautiful Flight 800 Memorial Park and a new playground, it has a lot to offer.
A popular camping and sportsman's destination, the playground and pond at Sears Bellows Park in Hampton Bays is a nice spot to take the kids for some fun in the woods.
Red Creek Park in the town of Southampton is an extensive sports park with baseball fields, basketball, volleyball and tennis courts, a skate park and two playgrounds.
Meschutt Beach County Park in Hampton Bays sits on a wide stillwater beach just east of the Shinnecock Canal and offers beach bathing (in season) and a very nice waterside playground.
The Railroad Museum of Long Island in Riverhead gives kids a place to explore the history of railroads on Long Island through hands-on exhibits, model train displays and a vintage miniature train ride.