Oregon Maritime Museum is on the stern-wheeler PORTLAND moored at the river wall in Waterfront Park at the foot of Pine St. between the Morrison and Burnside bridges. The museum traces maritime heritage in Portland and the Columbia River Basin through ship models, photographs, video collections and various artifacts. A guided tour of the engine room and the pilot house on the PORTLAND, the last operating steam stern-wheeler ship-assist tug in the United States, is included in the price of admission. Cruises aboard the PORTLAND are offered four times a year in summer; phone for details.