St. Marys Bay is a Bay located in Kings, Prince Edward Island and has an elevation of 0 meters.

• Latitude: 46° 7' North   (decimal: 46.1167000)
• Longitude: 62° 29' West   (decimal: -62.4832999)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Prince Edward Island
• Elevation: 0 meters
• Location: Kings
• Atlas of Canada Locator Map: St. Marys Bay
• GPS Coordinate Locator Map: St. Marys Bay Lat/Long