HYTTERには内風呂と野性味溢れる露天風呂があり、いずれも蓼科三室源泉のかけ流し。
高温の弱酸性泉で、豊富な湯量が特徴。殺菌力の強い成分は、慢性皮膚病だけでなく消化器病、筋肉痛、関節痛などにも効果があります。LODGEとCABIN、どちらにご宿泊いただいても、お客様にはチェックインからチェックアウトまで温泉をお楽しみいただけます。もちろん立ち寄り湯も可能です。
HYTTER boasts its inside and outside communal baths — both with Tateshina-Mimuro natural hot spring water (no added water, no heating and no circulation!). The hot spring has mild acidity with high temperature and is effective against various diseases and symptoms such as chronic skin diseases, digestive organ diseases, myalgia, joint pain, among others. All overnight guests can enjoy this Onsen from check-in to check-out, and drop-in guests are also welcome.