Obuse City is famous for its chestnuts, and this little café serves an amazing chestnut Mont Blanc. It’s the only thing they serve there, and in Japan, places that focus on just one dish often make it unbelievably good. You order it as a set, with one drink included (check out the 7th photo).
You can go in through the gorgeous main entrance (check out the last photo), but what makes this place even more special is its hidden entrance through the back gates. To find it, check photos 2-5.
Hidden entrance starting point: https://maps.app.goo.gl/9qhsNyWEtcArW9Vx5?g_st=com.google.maps.preview.copy