If the Maritol - a ship docked on Pier 50 in the San Francisco Bay - were on the high seas, Paul Baumgart would be steering it. The twenty-five-year-old’s office is located in the ship’s Wheelroom.

For some, the idea of people occupying an inoperative ship berthed by AT&T Park may conjure up images of squatters, rum and beef jerky. But the "passengers" aboard this vessel - a 135-foot ferry that ...