We bought on line tickets for city tour and river cruise and had the confirmation with us. We confirmed the tickets with the river cruise starting point stall and we were standing in the line to board the boat. When the time approached to board the boat the jerk manning the entry tried to refuse our entry to the boat saying it is not a valid ticket. At this time another guy from the cruise company intervened and let us board the boat. The jerk felt defeated and tried to keep the ticket with him(same ticket for cruise and bus tour). I explained to him that I need the ticket to board the tour bus after the cruise to get back to my hotel. He tried his best to keep the ticket but the same gentle man who intervened earlier went back to the stall and made a photo copy of the ticket and gave back the original.