Aogashima, Tokyo

The caldera floor sits below the village, and the earth there still breathes. Geothermal vents called *hinggya* push heat through the ground, and the campsite has cooking pots set directly into that heat — a practical arrangement that has nothing performative about it. Aogashima, a volcanic island far south of the main archipelago, holds perhaps a few hundred residents, most of them in two clusters near the northern rim.

The island's single shop, Jūichiya Saketen, carries the local焼酎 — *aochū*, distilled from sweet potato or barley at the island's own Aogashima Shuzo — alongside dried flying fish called *tobikun* and small packets of *hinggya no shio*, salt crystallized using the same geothermal heat. The salt appears in caramels and drops too, small confections that make the geology edible. At Ojare Ikenozawa, the island's one izakaya, the food culture comes through plainly: *shima-dare*, a chili sauce particular to the island, and *shima-zushi*, the local sushi form.

The Oyama Observation Park looks down into the double caldera — an outer rim, an inner cone, a floor of cultivation between them. At night, the park has facilities for watching stars, the darkness here being of a kind that coastal cities have long since lost. The 1785 eruption that emptied the island entirely still shapes how people here understand the ground beneath them: not as stable, but as something that has to be negotiated with, lived alongside, used carefully.