Interesting factory and you can see behind the scene of the making of Unagi Pie from behind a glass window. The entrance is free and they give you a small gift of Unagi pie at the entrance. On the website, it is mentioned that you can reserved a special tour. The place is pretty small and you can explore the place in 10-15 minutes. Other than exploring, there is a video you can watch about the factory itself (I believe it was all in Japanese and no (English)subtitle). There is a nice cafe that was the best and unique experience of the entire visit of this place. Lastly, there is a souvenir shop. Outside there is also a truck where they sell ice desserts. As everyone mentioned, it is recommend to visit here if you have a car. The place is quite far from tge nearest station. I walked from the factory to the closest Aeon shopping mall and it takes about 30 minutes. The closes bus stop takes you around 20 minutes walk up and down hill( not to mention the bus comes very seldom). I would not recommend to go here the way I did (by bus&foot).