Here is the first-rate hot spring information I heard from Toko-san the other day!!
South Yokozuna・・・
Yufuin→「House of Shoya」（Tsukanomataba no ma）
Oku Myouban Sanso
Furo Marathon
North Yokozuna・・・
Naruko Onsen (Miyagi)
Near Tokyo
↓↓↓
・Narata Hot Springs（Yamanashi）
Almost finished！
Day trip→The world's oldest "Keiunkan" is nearby here.
・Atsugi "Motoyu"
・Saitama "Tokigawa"
Hot spring department Nagano "Iwanoyu" Seni Onsen
Nakabusa Onsen
"Honbanko" in Hakone
新潟 赤倉観光ホテル Akakura Kanko Hotel in Niigata
Thank you so much!