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.
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.
Kumano Kodo, Japan: