I went with two cars for 9 people. The place was easy to find.
There was a shared space to relax at the facility, a clean changing room, and a toilet. There was preparation of weight suit and shoes. Basically, as it is written on the homepage, start changing after changing clothes and safety. The staff was very bright, gentle, and humorous. Many funny contents were also prepared. The river itself was not as torrent as I thought.
After finishing, there was a warm shower properly (it may be a little bit cold on the outside as it is outside). I got some pictures soon (About 200 photos were good and I got a lot of good pictures).
By the way, at last I ate a delicious meal in the nearby dining room and went home.
I had a very enjoyable day! Thank you very much!