Our homestay (minshuku) in that village with no amenities was the nicest place we stayed, confirming our bias that the most worthwhile places to visit require significant effort to reach. 
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Blissfully quiet, our comfy, clean tatami rooms opened to a courtyard lush with flowers and a water wheel fountain. To get there from the trailhead the host drove us down a riverbank, across, through, and along the river on a not-road, to their tiny hamlet of three homes with extensive gardens, chicken coops, and a helipad. I asked what the helipad was for and our host-mama-san replied: medical help. You may have noticed we are very remote here.