We’ve just arrived from our 15 day tour in Japan. It was wonderful! Their public transport is very efficient. We were able to experience taking their bullet trains, the Shinkansen. We bought the Japan rail pass and we rode from one place to another, i.e. Tokyo to Kyoto, Kyoto to Hiroshima, Osaka to Tokyo, etc. We also bought their IC Card which we used in their local and regional trains. At first, it was daunting, as the system seemed to be complicated, but once we were at it, we nailed it! Such a wonderful experience.