15 days in Japan & JR Pass

Hi there!

Here are some thoughts on your itinerary:

1. The trip all the way up to Sapporo over 2 nights will be pretty tough (though technically possible!). You'll not really have enough time to explore the area and would spend a whole day travelling.

2. Take a look at this 21 day itinerary for a good example of using a Japan Rail Pass to the fullest and for more information on getting up to Sapporo, Miyajima vs Hiroshima for overnighting and more information on Kinosaki Onsen, a great hotspring town near Mt Daisen.

3. Based on your itinerary, a good loop would be up to Tokyo via Kanazawa, Takayama and the Japan Alps rather than Sapporo. I'd also perhaps schedule some more time in Tokyo, where there is a lot to see and take in.

Hope this helps!