Inazumi Underwater Cave

Inazumi Underwater Cave features scenic boat rides through clear, blue subterranean waters that are maintained at a refreshing 16°C year-round. Visitors can admire illuminated stalactites up close while enjoying the unique natural cavern atmosphere.

Viewers show strong enthusiasm for the cave, frequently asking practical questions about age limits and the difference between boating and swimming options. Many mention recognizing the spot from television programs and praise unique attractions like the underwater sauna.