Tours of 'Disaster Prevention Underground Temple'
Located in Kasukabe City, Saitama Prefecture, the 'Disaster Prevention Underground Temple' is a key feature of the Metropolitan Area Outer Underground Discharge Channel, one of the largest in the world. This facility, situated 50 meters underground, can store approximately 670,000 tons of water, playing a crucial role in preventing floods caused by heavy rain.
Source: newsonjapan.com