Japan is a very cool place. Home to kimonos, sushi and haikus. There are lots of different regions in Japan for you to see. There are also lots and lots of hostels for students to go travelling in, which would allow them to experience the culture in another way.
I visited a Japanese Tea Garden while I was in San Francisco, and I would love to see a real one, and actually get a chance to drink the tea. I love me a good cuppa.