I've been to Japan on five visits. From my limited experience, I agree with what the blog suggests.
Best side-trip was when we departed the bullet train halfway between Tokyo, Kyoto and opted for a few days in the Kiso Valley — primarily to hike a stretch of the ancient Nakasendo highway. That also allowed the family to stay one night in a ryokan, and another night at a fairly luxurious onsen.
Never mind the English signs had more for less disappeared and you got to feel a little more of a sense of being "on your own".
Best side-trip was when we departed the bullet train halfway between Tokyo, Kyoto and opted for a few days in the Kiso Valley — primarily to hike a stretch of the ancient Nakasendo highway. That also allowed the family to stay one night in a ryokan, and another night at a fairly luxurious onsen.
Never mind the English signs had more for less disappeared and you got to feel a little more of a sense of being "on your own".
https://passionpassport.com/nakasendo-trail/