The Delta King is moored in Sacramento used as a hotel.
In San Francisco it’s at the pier in 1938. Click thumbnail to see it.

Delta King is a 285-foot-long paddlewheel steamboat (87 m). Delta King is the sister ship to Delta Queen, both christened 20 May 1927, traveling between Sacramento, California and San Francisco, California on 10-hour trips.

http://en.wikipedia.org/wiki/Delta_King