Translation of undo in Spanish

It is a beautiful neighborhood with with lots of boutique restaurants and shops. We invited our friends from the Netherlands to join us for dinner and they agreed. We found the restaurant in the Time Out magazine.
We drove to the next spot exactly at noon. We were told that this spot would not be crowded at all during the lunch hour and we were not surprised to find it completely empty without anyone else.
The next day we had the feeling that the worst of our altitude thickness was over and decided to take the local bus to the Sacred Valley, a key area of settlement to the Incas.