[Press Release] Excavation of the Colossal Cavern for Hyper-Kamiokande Completed
News
The University of Tokyo
On July 31, 2025, the University of Tokyo completed excavation of the colossal cavern that will house the main detector volume of Hyper-Kamiokande, a next-generation, ultra-large water Cherenkov detector currently under construction in Hida City, Gifu, Japan.

For more information, see the ICRR webpage.