広さ3300平方メートルの巨大スパ「天生（澄み渡る空）」と、600トンの天然記念物「三（さんばせき）」を使った石風呂をお楽しみください。
Gumma
36.50106, 138.92640 Open in Google Maps
DBL
DBL.EY
4 guests
ROO
ROO.JE
10 guests
TWN
TWN.NM
4 guests
DBT
DBT.JE-NM
6 guests
TWN
TWN.DX
4 guests
DBT
DBT.EJ-NM
6 guests
ROO
ROO.DX-PI
10 guests
ROO
ROO.EY
10 guests
TPL
TPL.NM
5 guests
ROO
ROO.EY-NM
10 guests
SGL
SGL.JE-NM
1 guests
ROO
ROO.NM
10 guests
SGL
SGL.EJ-NM
1 guests