There are many things to do in Kyoto.
I hope to do this one:
We live near the 37 km mark (in fact we might be running right past the kids school?) and most of my runs in Kyoto so far have been along the river north of the 30 km mark. KIT is just south of the course at about the 27 km mark.
The word on the street is that this marathon will be significantly oversubscribed, so I hope I have good luck in the lottery!