Prince's Island Park is an urban park in the city of Calgary, Alberta, Canada. It is developed on an island on the Bow River, immediately north of downtown Calgary. It was named after Peter Anthony Prince, the founder of the Eau Claire Lumber Mill. The park was built on land donated in 1947 to the city by the Prince family. It is often incorrectly referred to as "Princess Island Park". The park is open from 5 a.m. until 11p.m. every regular day. The island has a surface of 20 hectares and is linked by three bridges to Eau Claire and downtown Calgary and a north bridge to Memorial Drive and the community of Crescent Heights. It is part of the pathway and hiking trail system lining both sides of the Bow River. The southern arm of the river has been landscaped, while the eastern end of the island re-creates a wetland environment. Canada geese and mallard ducks are common birds found in the park.