[Machine Translation] (Special Appendix) / 2023 Calendar of Industrial Heritage / Spectacular open-air hot springs, open-air hot springs, and traditional hot-spring resorts / Special adventure plan Mototsu Onsen Girls Club, Yosshi-goes to unknown open-air hot springs Manza Onsen, Gunma Prefecture: Copper powder hot spring / Digital guide for smartphones: 100 famous hot springs in Japan ... Other