https://www.reserveamerica.com/explore/glimmerglass-state-park/NY/78/overview
The day passes are $7 a car, ample picnic tables & parking, some have built in grills on sites, & a lot are near the beach and play grounds. Beach, Changing rooms, & bathrooms close at 7pm. Be careful of the seagulls, 1 was stealing a ziplock bag of chips & while I was getting that another stole my sandwich. I think You can get more info on the NY state environmental conservation website.
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