Mark Bay is a Bay located in Nanaimo Land District, British Columbia and has an elevation of 14 meters.

• Latitude: 49° 10' 54'' North   (decimal: 49.1816667)
• Longitude: 123° 56' 00'' West   (decimal: -123.933333)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: British Columbia
• Elevation: 14 meters
• Location: Nanaimo Land District
• Atlas of Canada Locator Map: Mark Bay
• GPS Coordinate Locator Map: Mark Bay Lat/Long