(1000 Islands Skydeck) on St. Lawrence Islands National Park, S. of Lansdowne, Leeds Grenville County, ON. PH137 S. 2.2 miles (3.5km) from jct with PH401 exit 661 S. of Lansdowne to the tower on the SE side of the road. (N44 21.151 W75 58.728) Photos by Jack & June Schmidt 5-28-11.