The Aso caldera is one of the largest in the world, and Kusasenri sits inside it — a circular meadow on the flank of an active volcano, horses grazing at the edge of a pond while steam rises from the crater rim a short distance away. Japan is a volcanic country; Aso is where this fact becomes visible and immediate. The access to Kusasenri depends on the volcano's current activity level, which changes. On days when the crater is open, you can walk to the edge and look down into it. On days when it is not, the meadow itself is as close as you can get. Either way, the combination of pastoral calm and geological violence is unlike anything else in Japan — horses in a green bowl, smoke rising behind them, the mountains that form the caldera wall visible in every direction. The ground here is not metaphorically alive. The steam that rises from the vents is real steam from real geological processes. The acid smell that sometimes drifts across the meadow is real sulfur. Kusasenri is the most accessible place in Japan to be reminded that the land is not stable, has never been stable, and that the beauty of the landscape and its danger are the same thing.