Some Venetian rowing boats have special motor-mounts on the stern, giving the owner the ability to drive their boat with an outboard motor, but this guy was rowing anyway.
The boat appeared to be privately owned and well-maintained.
The guy rowing was in work pants and a white t-shirt.
I had to wonder if he was a worker sea-trialing the boat for the owner,
or the owner heading home after work.
Perhaps he'd just gotten off work and couldn't wait to get out and row.
I watched him row off in that beautiful boat, dodging motor boats, and then I kep walking...but I was thinking about rowing.
And obviously I wasn't thinking about whether it might be a sandolo (see comments).
Hey, I'm not above admitting I was wrong...sometimes. :o)