Awai Togakushi

A thatched-roof farmhouse shaped by generations of local craft sits deep in the Togakushi mountains, and the other option is a stripped-back former public hall that sleeps just two. This small ryokan-style stay is built around "yui," the old rural mutual-aid philosophy, which means the pace here is unhurried by design. Forest walks, mountain shrines, and meals from local ingredients fill the days. The Michelin Guide has it among its Selected Hotels.