In the heart of Nagano, where winter drapes the land in quiet white, lies a lake that carries a divine footprint—or at least, that’s what generations of believers have whispered. Every January or February, when the surface of Lake Suwa freezes just right, something extraordinary happens. Great cracks zigzag across the ice, rising like a frozen wave from shore to shore.

Some lakes invite swimming. Some invite photography. But Lake Usori? It whispers. It beckons. It waits. Nestled in the caldera of an ancient volcano at the foot of Mount Osore in Aomori, this eerie, otherworldly lake has long been believed to be a gateway to the afterlife.