Neptune Island is a Island located in Muskoka, Ontario and has an elevation of 181 meters.

• Latitude: 44° 50' 17'' North   (decimal: 44.8380555)
• Longitude: 79° 41' 58'' West   (decimal: -79.6994444)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 181 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Neptune Island
• GPS Coordinate Locator Map: Neptune Island Lat/Long