21 DAYS JAPON

Hi there!

You can certainly use the JR Pass for your travel to almost all all the above destinations, it is only around Fuji that you may have to use other travel methods such as the bus.

I think that 21 days is actually a very good amount to go about this, 3 weeks is a good amount to explore Japan. The JR Pass can be used for local train in both Tokyo, Yokohama, Osaka and other places. However other transport such as the metro are not included.

I'd probably spend a couple of days in Tokyo, where you can make day trips to Yokohama, Nikko and Kamakura. Then to Kyoto where you can make a day trip to Nara, Osaka and Himeji. Lastly you could go to Hiroshima and visit Miyajima as well.

You can find out about all lines covered using our JR MAP
http://www.jrpass.com/map

Hope this helps!
Daniel