We decided to take one of the first tours in the morning at 10.00 AM. When we arrived at the dock around 10.00 AM the person in charge told us to be back on 11.00 AM. We decided to visit the Royal Palace and returned to the dock at 10.40. Strangely there was no one quing for The Royal Bridges and Canal Tour. We decided to ask another person in charge and learned that there was a problem with the boat and the tour wouldn't take place until 1.00 PM. We were offered the boat trip of hop on hop off red tour, which was also had a duration of one hour. Wr accepted the offer for the sake of time. We had to follow a completely different route for the boat tour.
Really nice trip for those who don't have much time and those who love to see the bigger picture of the city, to see what you can find and to see a little more outside the tourist attractions and to learn something new from the audio guide : Only I hoped the windows where clearer so I can shoot more photos, but i think it is normal :D