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Rock Island Lighthouse State Park

Rock Island Lighthouse State Park
42247 Grassy Point Rd

Now Open! Come visit the historic Rock Island Lighthouse on the beautiful St. Lawrence Seaway. When you visit, climb the stairs of the lighthouse and enjoy a bird's eye view from the lantern room. Tour the museum in the keeper’s quarters and learn about the history of the island, its keepers, and the magnificent St. Lawrence River.  Walk the island and take home a souvenir from the gift shop.   

The Rock Island Lighthouse is located in the Thousand Islands, about 4.5 miles northeast of Clayton, Jefferson County, NY, off of Fisher's Landing. Docking is available to private craft and those aboard Clayton Island Boat Tours. For private vessels, Grass Point State Park is the closest launch site (about a 5 minute boat ride to the island). The island is partially accessible to visitors with limited mobility.

Weddings and special events-bookings available. Please call (315) 775-6886 for more information and rental rates. Events are by permit only.