ImportantTemporary suspension of web reservations due to system maintenance. ImportantAbout resuming reservations for group tour (as of September 15, 2023) ImportantChange about limit number of visitors from September 23, 2023 Home News News Update on closureMay 13, 2024 About closed day in June 2024 Update on closureApril 4, 2024 About closed day in May 2024