We toured the Guggenheim Museum in the morning; hence, we only had the afternoon to take the hop on hop off bus. That was a big mistake. We wish we had spent more time with the bus route. It was very informational and convenient, and there were nice views from the bus. We will definitely do this again if we ever go back to Bilbao!

This gave us a good overview of Bibao.

Bus was clean and speaker was loud and clear.

We went to the first stop on the receipt of the ticket that I got at home, and no bus came. We walked to the second stop and waited, and still no bus came. Finally, we went to the Guggenheim stop, and a bus arrived. In the meantime, we had walked and asked locals about this bus service for about an hour in the summer heat. I would definitely guide your passengers better on how to meet up with the bus to best start the tour. Also, there were no earphones for tour, so the passenger conversations in the other languages around us were VERY distracting. The sites were great though.