My wife and I cycled to Nakabuan to try out somen noodle making and sample our creation. We called the same morning and were able to reserve a spot at lunch time. Due to the location, we could also combine this with our visit to the Yamaroku shoyu factory, which worked out great as they are less than 5 minutes away (about 10 minutes walking). It cost 1000 yen for the tour and noodle lunch, which was more than worth it. The guy running the tour was funny and informative, and definitely passionate about somen. He understood some very basic english, but if you know Japanese this will be much more enjoyable. Still, you can follow along with images and probably understand the basics. Making the noodles was a little stressful, but really fun and actually quite a simple process. We took loads of photos and had a great time! Lunch was a big bowl of fresh somen with sauce and some toppings - very simple but delicious. We would absolute recommend this activity to others.