720 Kamikanasaki, Kasukabe, Saitama Prefecture
Rating
Cost per person
¥4,000
Explore the Metropolitan Area Outer Underground Discharge Channel, a flood control facility offering unique tours. Descend into the underground realm and witness the impressive pressure-adjusting reservoir, also known as the "Underground Temple." Several tour options are available, including the popular Underground Temple Course (¥1,000) and more extensive explorations of the pump room and turbine areas. Located in Kasukabe, Saitama, it's a 25-minute walk from Minami-Sakurai Station on the Tobu Noda Line, or easily accessible by car. Advance reservations are required.
📅 Reservation recommended