Sarnia Bay is a Bay located in Lambton, Ontario and has an elevation of 182 meters.

• Latitude: 42° 58' 44'' North   (decimal: 42.9788888)
• Longitude: 82° 24' 35'' West   (decimal: -82.4097222)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Elevation: 182 meters
• Location: Lambton
• Atlas of Canada Locator Map: Sarnia Bay
• GPS Coordinate Locator Map: Sarnia Bay Lat/Long