Most presidents don't have yachts these days. Perhaps they're content with schooners, Air Force Ones, and secret teleporters. But Franklin Delano Roosevelt had a yacht that he treasured to his dying day. The USS Potomac isn't the type of seacraft that ferries playboys sipping mimosas and listening to Hall and Oates. It's a former Coast Guard cutter Electra boasting 416 tons of inertia designed for up to 30 knots of cruising speed; it's intended for authoritarian command. When the Squire of Hyde Park held the reins, the 165-foot vessel played host to political meetings, the very first visit of the British monarchy, and fishing trips, and it even served as a decoy while FDR and Churchill crafted the Atlantic Charter between games of Marco Polo. But when he passed, his sweet ship suffered decades of neglect. Thanks to Elvis Presley, and his mother's fondness of FDR, the ship was rescued and given to Danny Thomas as a fund raiser for St. Jude's Hospital.

From good works to bad...the Potomac wound up busted by the DEA for running drugs between Mexico and San Francisco Bay, and it was impounded at Treasure Island where she sank. Later the Potomac, in gnarly condition, sat on the Oakland Estuary mud flats for 12 more years. Rotting and rusted the once "Queen of the Potomac" was finally rescued and restored between 1983 and 1995.

Now docked at Jack London Square where landlubbers savor dockside tours, the floating testament to the New Deal maker also departs on chartered cruises and history tours. The expert docents give the full dossier on the FDR, his buoyant baby, and the history of San Francisco Bay as tour-goers soak in the sights and high seas.