We went on the shared gondola ride with the serenade. We really enjoyed it. We did not mind that there were other people on the gondola with us. It was a nice mini-ride through the canals. Although it was still a bit pricey, we really enjoyed the once in a life-time experience. With this option the drop off and pick up location was the same. It was quite simple using the viator booking, we just showed them the print out and we got to go on. We were there early and they had room, so they let us on.