Mary Island State Park
- 36661 Cedar Point State Park Drive
- Clayton, NY 13624
- (315) 482-9381 | (800) 456-CAMP
- Visit Site
Access by boat only. Offering seclusion and spectacular views of the Canadian shore or the shipping channel. The park has a picnic area and several foot trails. Pets must have proof of current rabies vaccination - certificate inoculation or dated collar tag. Household pets only.