Grand Dune Inlet is a Bay located in Northumberland, New Brunswick and has an elevation of 2 meters.

• Latitude: 47° 9' 30'' North   (decimal: 47.1583754)
• Longitude: 65° 12' 5'' West   (decimal: -65.2013674)
• Topography Feature Category: Bay
• Geographical Feature: Inlet
• Canadian Province/Territory: New Brunswick
• Elevation: 2 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Grand Dune Inlet
• GPS Coordinate Locator Map: Grand Dune Inlet Lat/Long