The tour advice was good, the only thing is that the actual time will differ from the pictures online; the staff on the bus will confirm the exact date. Because we went during off-peak season, the bus didn't stop and pick up passengers at every station, only stopping when passengers had been advised to get on and off at a certain point. For a 4-hour ticket, it's best to choose to get off at 2 stations, and you can stop at a third station and explore if you want (instead of getting back on the bus).