Out under the Golden Gate and home again, by ear. Best with sound on.
The fog's in, and you've 48 sightseers aboard. Take them out from the Ferry Building, round Alcatraz and under the Golden Gate, then drop them off on the way home: Sausalito, Pier 39, and back to the Ferry Building.
You can only see a boat-length ahead, so sound the horn and watch what echoes back. Each stop has its own sound to find it by: the dock bell at Sausalito, the sea lions at Pier 39, the Ferry Building clock. To dock, come in slowly alongside and hold still a moment.
Arrows or WASD to steer · Space for the horn · best with sound on
A little game for the days Karl rolls in. The horn is after the two-tone foghorns under the Golden Gate Bridge: a high note, then a low one.