Curwood Castle’s guided tours return with the much-anticipated Opening Day this weekend. History enthusiasts and curious locals are invited to explore one of Owosso’s most iconic landmarks on the first official day of the season. Knowledgeable guides will lead visitors through the castle’s storied rooms, offering insight into its heritage and the life of author James Oliver Curwood. Tours are available at scheduled times throughout the day. Don’t miss the opportunity to step inside a piece of living history.