This boat is a National Historic Landmark. You can find it at Jack London Square in Oakland, CA. It was Franklin Delano Roosevelt's "Floating White House". The yacht is 165 feet long, and twelve years of work and $5 million dollars were spent restoring it. The Potomac Association, a nonprofit organization, owns, operates, and maintains the USS Potomac. It is open for guided dockside tours and two hour narrated history cruises along the San Francisco waterfront, Treasure Island, and Alcatraz. The 24-hour information line is 510-839-8256.