The bus/ferry change-over is at Colonia Del Sacramento, a Uruguayan tourist spot, but I was too tired and queasy to tourist, so I just waited at the terminal for an hour.
Also along on the trip was an orchestra; a glimpse of an envelope in someone’s hand revealed it had “Bach” in the name, so I suspect I would have enjoyed their music. Here are a few of them.
The building itself was architecturally interesting but rough-edged; I couldn’t decide whether it was unfinished or showing its age. It did however feature shiny surfaces, which made the orchestra more interesting.