There is a Red bus and a Yellow bus. Same prices pretty much. A very good expenditure of $8 per person to get a 2 hour overview of Cuenca. It picks up, and drops off, in front of the Old Cathedral (across the square from the Nueva Cathedral) in the center of town. We stood around looking – like tourists? – and a nice young woman selling tickets spotted us, sold us the tickets, and made sure we got on the bus.
We’d spent the previous day doing our own touring on foot, and wished we had done the bus tour first to better orient ourselves. We rode on the upper deck, which provided a great perspective to see some of the fine architecture we had frankly missed on foot at street level. The only downside to the upper deck is paying attention to the utility cables which occasionally come within a foot or so of your head. Just be mindful, and don’t stand up without looking first! It takes you to both the downtown historical center, and the newer south side of town, where the university is, as well as newer housing and apartments. The bus also takes you up to Turi, with great views of the valley and Cuenca below. The tourist trap portion (yes, you get off the bus and are taken to a gift shop) is tolerable and brief, no hard sell, you get a taste of the area drink specialty…canelazo, and you might even see a picture of a cuy (guinea pig) on a stick! They actually have pretty good prices, too, if you need a souvenir.
The tour covered a wide swath of Cuenca, and was well worth the time and money. A great overview. We did not get on / off, other than at Turi (where the bus waits for you) and that was fine, since the next bus doesn’t come for an hour at the other places you could get off. It was not obvious how one would get off anyway, but we assumed you could just ask the driver if you wanted to visit, say a museum.