Mary Island Campground

Mary Island Campground

There are no showers or beach at this park.Patrons must have at least a 14' motorized boat toaccess Mary Island. Boaters are instructed to launch from Keewaydin State Park. Motor boats can be rented at Keewaydin State Park marina.


Within Facility
  • Boating
  • Comfort Station
  • Fishing
  • Marina
  • Picnic Tables
  • Picnicking
  • Water Fillup Station
Within 10 Miles
  • Golfing
  • Hospital
  • Powerboating
  • Shopping


Mary Island
Clayton NY 13624

For Mary Island: Boat launching, parking and directions are available at Keewaydin State Park, which is 1 mile west of Alexandria Bay off Route 12. Take exit 50N off Interstate 81 to Route 12 and go approximately 4 miles. Keewaydin State Park will be on your left.

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