I misread the instructions and showed up late at the wrong entrance point. I wasted time looking for everybody and being somewhat frustrated that I will be drawing yet again alone ... In the end, I stayed on the free grounds - not much to see of course. Next time I will be better prepared and show up early morning so that I have plenty of time in the gardens.
I decided to concentrate on perspective drawing of a building - a bunch of rectangular blocks really - and the roof of the stadium. The pages were prepainted.
On the way back I drew mostly bodies - it is easier to do without people noticing.