For Tokyo and Osaka

Hi there,

The Japan Rail Pass is valid on the nationwide rail network, that includes local JR lines in both Tokyo and Osaka but not other transport like the subway or Tokyo metro.
You can use this map to see all that is covered.

From what I understand, is that you will visit: Tokyo, Miyajima (close to Hiroshima), Osaka, Kyoto, Kanazawa and back to Tokyo. All these places are fully covered by the JR Pass, so no worries there!

I am a bit unsure about your exact itinerary but you will be sure to make some nice savings with both the 14 and 21 day JR Pass. The difference in price for the 21-day JR Pass is ¥ 12,600, this is easily covered, for instance one way from Kanazawa to Tokyo alone is ¥ 15,750. It is a really nice option if you do want the added flexibility.

Trains from Kanazawa leave every 30 minutes, this means that you won't have to worry about them selling out. Still, with the JR Pass you can make a reservation at any time once you are in Japan. My recommendation is to make the reservation one day before, this way you are sure to have a smooth ride and you won't have to come early to the station to get the tickets reserved.

Hope this helps,
Daniel