Let's go to universities!!
Annual school festival season has just started.
It's called Bunka-sai , an annual event held by most schools in Japan, from junior high schools to universities at which their students display their everyday achievements. People who want to enter the school themselves or who are interested in the school may come to see what the schoolwork and atmosphere are like. Parents may also want to see what kind of work their children have been doing. (ref.http://en.wikipedia.org/wiki/Japanese_Cultural_Festival)
Most universities welcome anyone, so I recommend you to take a look if you have no plan.
At the university, you can have variety of street foods such as Yakisoba, Takoyaki, Ice-cream, asian foods and so on.
Moreover, they have some concerts and lives performed by famous singers and comedians at a lower price;)
Some of them have a special open-day that you can take the lecture.
It's good to know how Japanese students are♪