You know those river cruises they do in Europe? Last night while half-asleep in bed, I had a vision of a trash version of that on a junky old boat in the Sacramento River Delta. The tour would take guests along the canals. Sights would be old barges and rotting docks.

Stops would be at the rundown little towns sprinkled along the waterways there. Two hours to go ashore in Rio Vista and hang out at the local bar or get a hamburger, and then we're off to the next town.

@MLE_online "Ghost town cruises" sounds like it'd be an interesting angle. I'd note that I've seen ads on the OTA TV subchannels for some outfit that's running cruises in US waters - along the Atlantic coast, up the Misississippi and Columbia rivers, etc. I get the sense that these are aimed at people who have no interest in getting a passport or traveling outside this country but still want to try cruising.
@emeb up the Mississippi could be really fun, but not if it's tailored to the kind of people who like cruises