I kived in Japan for two years, working and studying kendo. Great place.

If you go down to Hiroshima, then take the time to cross to Miyajima Island which is very close. This is the site of the big red torii gate that is on many photo shots of Japan. This is opposite the Itsukushima shrine and stands in the sea.

Nara. Go to the Todaiji, it is the largest wooden building in the world and the statue of Buddha inside is stunning.

Near Tokyo is Hakone, from there on a clear day you can get very good views of Fuji-san. But it is a shy mountain in the summer. Hakone is well elevated and is cooler than the area around Tokyo. Also lots of natural hot springs, onsen, well worth a visit to one to bathe.

In Tokyo go and see the tombs of the 47 ronin at the Sengaku-ji near Shinagawa station. Their Daimyo was forced by a coutier to commit suicide, so they became masterless. They waited and planned a revenge. They cut the head of the courtier, but in doing so they too were forced to commit suicide. All 47 plus their Daimyo are bureid there.

Also in Tokyo near the national Sumo stadium is the Edo Museum. It is huge and inside are reconstructions of many of the old houses of Tokyo. Well worth a visit.

And if you have a chance ask at the place where you are staying if there is a kendo dojo nearby you can visit and see a kendo practice. I have studied kendo for 20 years now and a good practise (kendo no keiko) is spectacular when the free practice starts after the warm up exercises.

Advice for eating. If you look in the windows of many of the resteraunts in Japan you will see models in plastic of the food. They are very realistic and show a price too. It is exactly what you will get. So if there is no English menu, take the waitress outside and show her what you want by pointing at the model food.