Curwood Castle, located in Curwood Castle Park, stands on the banks of the Shiawassee River. It served as the writing studio of James Oliver Curwood, one of America's foremost authors of adventure novels and an early advocate of environmental conservation. Set in Owosso, among one of the richest collections of historic homes and buildings in the Midwest, this replica of a Norman chateau was completed in 1923. The beautiful castle was used by Curwood until his death in 1927.

A leisurely stroll along the Shiawassee River is one of the most peaceful ways to enjoy Owosso. This scenic river cuts through the heart of the city, offering a beautiful natural setting for visitors and locals alike. The Shiawassee Riverwalk is a popular spot for walking, jogging, or simply relaxing by the water.