I went to a couple of beer festivals in Hibiya Park this year - one in the spring and one in the late summer (technically early autumn). Of the two, the spring one was larger and more interesting, but they both were nice and lucky with good weather (at least on the one day in the spring and one day in the autumn that I went).
I took a series of video clips as I walked over to Hibiya Park. I didn't get the timing of the edited clips down right, but as far as showing a few scenes here and there between (and including) Yurakucho Station and Hibiya Park, it might be of some small interest:
Lyle (Hiroshi) Saxon