[Saitama] Underground Exploration Museum RYU-Q Kan & Oya History Museum Tour

• The world-class giant underground drainage system "Metropolitan Area Outer Suburb Drainage Channel"! Take you to visit the spectacular wonders of the artificial flood control system
• The mysterious underground temple "Otani Museum", feel the mysterious atmosphere in the magnificent underground quarrying space, and the heavy sense of history is breathtaking
• Italian style buffet for lunch

* It feels like you are in a mysterious space of ancient ruins! "Otani Museum" The Otani Museum is a representative tourist attraction in the area, where you can experience the historical charm of the stone town of Otani. The predecessor of the Otani Museum is a historic quarry, and the stone used for the main statue of Guanyin in Otani Temple came from here. The museum not only preserves detailed information about the mining technology, tools and historical data of Otani Stone, but also allows visitors to visit the spectacular underground space covering an area of approximately 20,000 square meters and 30 meters deep. The dark, quiet and solemn atmosphere of the ruins make it look like a mysterious underground temple, making it a popular filming location for movies, music videos, dramas and even concerts. The Otani Stone, which once supported the local architecture and culture, continues to tell the history of "Stone Town" in this space. * The Tokyo Metropolitan Area Outer Suburb Discharge Channel, Japan's