STAY INFORMATION | Open-air bath with milky white sprinkle for beautiful skin, Seiunso【official website】

Official SNS



Number of rooms 63 rooms
Check in 3 p.m.
Check out 10 a.m.
Parking up to 200 vehicles. Bus parking and parking for the handicapped are also available
Credit card accepted
Other Seiunso guests get 50% discount on admission to Kojigoku Onsenkan (regular price ¥460)

Check in・Check out

Check-in: from 3 p.m. (security personnel takes care after 9 p.m.)
Check-out: 10 a.m.
Early check-in/late check-out available for additional fee of \1,000 per person. (subject to change depending on seasons)


Free Wi-Fi in every room
* no LAN jack, no rental PC


Self-service laundry machine on 2F: 2 washing machines and a drier
Washing machine: 50 minutes/cycle, Drier: 60 minutes
¥100/cycle each


  • Setting futon is self-service
  • Under school-age children are charged ¥880 for breakfast (tax included)