In the end we went up to the tower. We have never climbed so steep stairs ever before and once up we were really afraid to go down. There were no safety installation at this tower.
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.
In Guatemala this is one of our biggest problems at the moment: young and pore people take drugs and drink alcohol because they are depressed and bored. The capital has become very dangerous. | 
