The toilets are not very visible as they are underground, you will notice a staircase going downstairs that's it. There you'll find a serie of 4 urinals with nothing to block the visibility on your neighbor. The toilets are very well located as they are close to a outdoor gym area. So If you're lucky and patient you'll find some hot guys to watch and some times play. Late afternoon on weekends seem to be the best time to go there, lot of guys with some young and cute ones coming here, and looking for fun. Just be discreet as it is not only gay guys coming to these toilets of course
At last (at my fourth attempt going there) I found a guy to wank with in these toilets. But at least it's very easy to spy on your neighbour as u can see on the photo.