The size and weight of the camera and the many stops could damage the film due to the security checks. So the only portable camera was my iPhone, for which I bought the ProCamera App. This app allows me to take images in manual mode an generate a RAW file in addition to the jpg.
My hotel was at the Polanco zone, where there are many restaurants. Going out for lunch, I passed near El Palacio de Hierro mall, where they had fountains with water jets.
Some security guards looked at me with curiosity, or maybe suspicious of what I was doing. Fortunately, they let me take the images I wanted.
After lunch on one of the Polanco restaurants I passed by the mall again, but the water jets had stopped working.