Translation of experiment in Spanish

In the early morning, before going to the airport we went to the travel office of the Vietnamese airline company to avoid about possible problems with the entry. They assured us that everything was fine.
We were not the only tourists, there were a many boats sailing on the same route. At one point the driver stopped the boat and immediately children of the village people approached us.
In the afternoon we went to the Cerro Catedral which is a small mountain not far (30 minutes) from the city. You can either climb up or take the chair lift. We chose the second option.