Hello!

Returning to Japan for the first time in five years (last time did Tokyo, Kyoto, Nara, Yokohama).

I will be there from July 20-30. I need to end my trip in Tokyo and am looking forward to spending a few days there.

I am traveling alone and was originally was seriously considering Hokkaido, but the lack of budget-minded hotel rooms in Sapporo and difficulty getting around without a car made it look more and more daunting, especially since I only have a few days to plan this (last minute trip - I'm flying to Korea Thursday from NYC).

I am now considering Osaka (July 20-26) and using it as a base to go to:

Nada Sake District/Kobe
Naoshima & Inujima
Kinosaki Onsen


A few questions:

1) Is it possible to do Naoshima & Injuima in one day? Or should I go overnight and potentially pair it with Kurashika?

2) Any other suggestions of places to go from Osaka?

Any suggestions would be much appreciated.

Also, feel free to talk me out of all of this and suggest somewhere else entirely. I haven't booked anything yet except my flight out of Tokyo on the 30th