Nagatoro Iwadatami Rocks長瀞岩畳
Due to its unique shape, tourists came to visit it, and in 1924 it was designated as a national scenic spot and natural monument. Nagatoro Iwadatami Rocks is a huge rock terrace on the Arakawa-river in the small town of Nagatoro, Saitama prefecture. The formation is called "Iwadatami" as it resembles tatami mats covering floors. In the vicinity, you will find circular potholes created by the torrents of the Arakawa River, as well as strata and faults of various shapes. The rock pavement continues along the Arakawa River about 50m wide and about 600m long. It is very rare geologically. Nagatoro is often called the "window to the earth" as you can observe the earth's crust from above the ground. Many scientists from all over Japan visit this area.
Nagatoro Iwadatami is a recommended spot all year round, but it is also popular during the fall foliage season.
If there is no staff in the parking lot, please put the parking fee in the white mailbox at the entrance as explained in the photo. Please refer to Drive Japan's photo explaining parking for more information.
About 25 minutes by car or 13km from Chichibu Station.