Elevation 122–177 m (gain 55 m)
Registered on OpenStreetMap as accommodations open to the general public.
| Name | Booking | Straight-line distance from the road |
|---|---|---|
| 一宿一景一生縁・市原 | 楽天トラベル (Rakuten Travel) | 2.49km |
Elevation 93–134 m (gain 41 m)
Registered on OpenStreetMap as accommodations open to the general public.
| Name | Booking | Straight-line distance from the road |
|---|---|---|
| ＫＵＲＫＫＵＦＩＥＬＤＳ ＴＩＮＹＨＯＵＳＥ ＶＩＬＬＡＧＥ | 楽天トラベル (Rakuten Travel) | 332m |
| cocoon | − | 394m |
Elevation 52–95 m (gain 43 m)
Registered on OpenStreetMap as bathing facilities. A “−” in the onsen column only means OSM records no spring type — it does not mean the bath is not an onsen. Some communal baths are reserved for locals or staying guests.
| Name | Onsen on OSM | Straight-line distance from the road |
|---|---|---|
| 五右衛門風呂 | − | 1.02km |
Elevation 49–90 m (gain 41 m)
Registered on OpenStreetMap as accommodations open to the general public.
| Name | Booking | Straight-line distance from the road |
|---|---|---|
| ホテル サンタルージュ【大人専用１８禁・ハピホテ提携】 | 楽天トラベル (Rakuten Travel) | 1.29km |
| ＴＨＥ ＭＩＬＬ ＳＴＵＤＩＯ ＨＯＴＥＬ | 楽天トラベル (Rakuten Travel) | 2.72km |
Registered on OpenStreetMap as bathing facilities. A “−” in the onsen column only means OSM records no spring type — it does not mean the bath is not an onsen. Some communal baths are reserved for locals or staying guests.
| Name | Onsen on OSM | Straight-line distance from the road |
|---|---|---|
| 房総四季の蔵;四季の湯 | − | 2.06km |
| 君津の湯 | − | 2.67km |
Elevation 50–85 m (gain 35 m)
Registered on OpenStreetMap as accommodations open to the general public.
| Name | Booking | Straight-line distance from the road |
|---|---|---|
| オークラアカデミアパークホテル | 楽天トラベル (Rakuten Travel) | 1.42km |
Elevation 39–57 m (gain 18 m)
Registered on OpenStreetMap as accommodations open to the general public.
| Name | Booking | Straight-line distance from the road |
|---|---|---|
| 久留里山荘（ＱＵＬＲＩ ＳＡＮＳＯ） | 楽天トラベル (Rakuten Travel) | 2.10km |
| ＥＴＯＷＡ ＫＩＳＡＲＡＺＵ（エトワ木更津） | 楽天トラベル (Rakuten Travel) | 2.40km |
Elevation 28–51 m (gain 23 m)
Registered on OpenStreetMap as bathing facilities. A “−” in the onsen column only means OSM records no spring type — it does not mean the bath is not an onsen. Some communal baths are reserved for locals or staying guests.
| Name | Onsen on OSM | Straight-line distance from the road |
|---|---|---|
| かずさのお風呂屋さん | − | 2.18km |
Accommodation & bath locations and onsen records: © OpenStreetMap contributors (ODbL) / retrieved 2026-09-02
Names and locations of places listed on the booking site, and the links to them: Rakuten Travel API / retrieved 2026-09-01
Road locations: © OpenStreetMap contributors (ODbL) / retrieved 2026-08-03
Elevation: GSI Japan DEM10B (sampled every 50 m)
Municipality: GSI reverse geocoding at road endpoints (not the address of each facility)
“Rakuten Travel” links are affiliate advertising: bookings made through them earn this site a commission. Ordering and grouping are decided by distance and facility type only, never by commission.