Harlequin Basin is a Bay located in Range 2 Coast Land District, British Columbia and has an elevation of 47 meters.

• Latitude: 51° 53' 00'' North   (decimal: 51.8832999)
• Longitude: 127° 51' 35'' West   (decimal: -127.8597000)
• Topography Feature Category: Bay
• Geographical Feature: Basin
• Canadian Province/Territory: British Columbia
• Elevation: 47 meters
• Location: Range 2 Coast Land District
• Atlas of Canada Locator Map: Harlequin Basin
• GPS Coordinate Locator Map: Harlequin Basin Lat/Long