This supersento is located in a bigger entertainment complex with games centers, movie theaters, pachinko, and other stuff. The supersento almost seems to be an afterthought. The most unique aspect is the resistance exercise baths. You stand in a chest-deep bath in front of a water pump that pushes the water towards you with a great force that you can adjust. Then, you push against the water flow as an underwater exercise using your core muscles. The spring water seems to be only used in the main outdoor, but the effect is not very noticeable. In fact, I enjoyed the main normal baths and the carbonated water bath much more. Getting here is easy on the free (and popular) shuttle bus that leaves from the north side of Kokura station. Check the website for a map and timetable. Also, make sure you get a return ticket from the counter when you enter the supersento section of the complex.