Seaway Island is a Island located in Lambton, Ontario and has an elevation of 175 meters.

• Latitude: 42° 32' 34'' North   (decimal: 42.5427777)
• Longitude: 82° 38' 37'' West   (decimal: -82.6436111)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 175 meters
• Location: Lambton
• Atlas of Canada Locator Map: Seaway Island
• GPS Coordinate Locator Map: Seaway Island Lat/Long