Onsen OniOnsen Oni

Search Onsen Oni

Search onsen, areas, prefectures and pages.

Robatakan

炉ばた館ろばたかん

Lodging

Day Use

Yes
05:00–09:30, 15:00–23:59
¥600

Day-use bathing costs 600 yen for adults and 400 yen for children.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Indoor BathYes

Enclosed indoor bathing area

Capabilities

Room OnsenNo

Private onsen bath in guest rooms, for overnight guests only

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooNo

Allows entry with visible tattoos

KidsYes

Welcomes children and families

A reviewer's 3rd-grade son bathed with the family, implying children are accepted; no explicit written policy found.

ParkingYes

On-site or nearby parking available

Water treatment

Pure source water· 源泉かけ流し (gensen kakenagashi)
from Article 18 disclosure
  • Added water
    No
  • Reheated
    No
  • Recirculated
    No
  • Disinfected
    No
  • Bath additives
    No

混合泉 町営6号泉(松崎6号)・町営9号泉(松崎13号)

Mixed Spring: Town No.6 (Matsuzaki No.6) and Town No.9 (Matsuzaki No.13)

Operated by · 炉ばた旅館

Mixed source

Sulfate
Hot source · 53°CHigh silicaTop-decile alkaline
Known good for
  • Aches & jointsstiff shoulders
  • Circulationtired legs
  • Smooth skindry, rough skin

A calcium- and sodium-led sulfate spring, settled and mineral-rich with noticeable body. At pH 8.6 it is alkaline, leaving a slippery, soft feel on the skin that places it in Japan's beauty-water family. It carries 57 mg/kg of metasilicic acid, enough for a thin silica film that smooths the skin. It is served as untreated source flow — no dilution, heating, recirculation, or disinfection.

Sampled at mixing tank·Analyzed Jun 29, 2022·株式会社サイエンス

Explore the water

About

Robatakan is a small ryokan in Matsuzaki, a quiet coastal town on Shizuoka's Izu Peninsula. It has a single indoor bath, split by gender, with clear water that runs hot and carries a faint trace of sulfur. Guest rooms don't have their own bath, so everyone shares the same small tub.

Loading map…

Reserve or check availability on a booking site.

SM
Sergey M
1 year ago

247. Robatakan, Matsuzaki A simple, small, old ryokan in the countryside. Stayed overnight — without meals it was 7000 yen (but food could be ordered separately). Higaeri listed at 500 (15:00–21:00). Very close by there are several atmospheric temples (especially late at night), a museum with a straw dragon, a convenience store, and a pond with bridges. Walking to restaurants that stay open late (nice for the countryside) takes about 10–20 minutes. They stamp the 60 Onsen of Shizuoka 24/25 booklet. Inside there's a small onsen. Clear water, temperature 43.5. Comfortable to breathe. I originally booked this as just a technical stopover to sleep, since they stamp the rally booklet here, it was conveniently on my route timing-wise, and I needed somewhere to sleep. But considering the surroundings and nearby attractions, I really enjoyed it and recommend the place. Would be interesting to come back to the town and explore it at a more relaxed pace.

1
2
3
4
5
6
7
8
Onsen Oni

Last updated August 5, 2026