Minamioguni, Kumamoto

Steam drifts over the narrow canyon at Kurokawa Onsen, where two dozen wooden inns press close to the river on both sides, their eaves almost touching the tree canopy. No train reaches Minamioguni-machi — you arrive by bus along a road that climbs through cedar and cypress, the air thickening and cooling as the plateau opens out. The town sits on the outer rim of the Aso caldera, ranging from valley floor to high grassland, and that vertical range gives it a particular restlessness: the same morning can hold mist in the gorge and clear sky over the uplands.

At Seno-moto Kogen, the plateau rolls out toward the Aso volcanic peaks on one side and the Kuju range on the other, the grass short and wind-pressed in a way that makes distance legible. Below, at Manganji Onsen, a handful of communal bathhouses stand along the river — the kind of facility that belongs to the neighborhood rather than to visitors. Locally grown shiitake and maitake mushrooms appear in roadside stalls and at Kiyora Kaasa, the town's produce market, alongside cuts of Akaushi beef and jars of takana pickles. Small-country cedar — Oguni sugi — has shaped the built environment for generations, its straight grain visible in the inn interiors and in timber stacked outside the sawmills along the valley roads.

Manganji temple, founded in the thirteenth century, holds a portrait designated as a national important cultural property; nearby, the Kinpira cedar stands with roots spread wide across a hillside. The Aso Cultural Landscape designation covers these grasslands and forests together — not as scenery set aside, but as terrain that farming and forestry have continuously made. Kurokawa's reputation has grown internationally, yet the surrounding plateau and its quieter hot-spring hamlets — Tanohara, Shirukawa, Oda — absorb that attention without much visible strain.