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Hoppo Onsen

Nagano · 発哺温泉

Hoppo Onsen is a hot spring town in Nagano, Japan. The water leaves the ground at 50°C, hot. Officially the water is classed as sulfur spring.

Getting there

From Tokyoabout 3 h
CarNot needed
JR PassNot a JR line
  1. Train to Yudanaka Station
  2. Local bus, about 60 min

Fly into Haneda or Narita. Times are rough estimates worked out from station locations, not a timetable — check the exact route on Google Maps.

Sulfur spring

The water here

Sulfur spring 硫黄泉

The classic rotten-egg smell and milky white water. It can tarnish silver jewellery, so take it off.

Things to see nearby

Higashidateyama Ski AreaSki area · 0.7 km
Shiga Kōgen Ski ResortSki area · 1.3 km
Mount YakebitaiMountain · 4.8 km
Takanashi clan fortified residenceCastle · 11.8 km
Kaminari FallsWaterfall · 8.7 km
Jōfu FallsWaterfall · 10.2 km

Places from Wikidata, photographs from Wikimedia Commons. Distances are in a straight line from the town.

With tattoos

Many public baths still turn away visible tattoos, and the rule is set by each bath, not by the town. The reliable way round it is to bathe privately: a room with its own open-air bath, or an inn with a private bath you can book for yourselves.

Rooms with an open-air bath — NaganoInns with a private bath — Nagano

More on tattoos and onsen

Where to stay

Onsen inns — Yamanouchi Town

Opens Rakuten Travel, which lists inns in English. Onsen Guide earns a commission if you book through these links, at no extra cost to you.

Hot spring towns nearby

Jigokudani OnsenNagano · 地獄谷温泉4.1 km west
Chloride spring+2
Kanbayashi OnsenNagano · 上林温泉5.7 km west
Chloride springSulfate spring
Shibu OnsenNagano · 渋温泉6.7 km west
Chloride spring
Kakuma OnsenNagano · 角間温泉6.8 km west
Chloride springSulfate spring
Andai OnsenNagano · 安代温泉7.1 km west
Chloride spring
Shichimi OnsenNagano · 七味温泉7.8 km south
Sulfur spring

Similar water elsewhere

Towns further away with the same kind of water — useful if this one is hard to reach or fully booked.

Takamagahara OnsenToyama · 高天原温泉Also sulfur
Sulfur spring
Nikkō Yumoto OnsenTochigi · 日光湯元温泉Also sulfur
Sulfur spring
Sumatakyō OnsenShizuoka · 寸又峡温泉Also sulfur
Sulfur spring
Yachi OnsenAomori · 谷地温泉Also sulfur
Sulfur spring
Yumata OnsenNagano · 湯俣温泉Also sulfur
Sulfur spring
Noji OnsenFukushima · 野地温泉Also sulfur
Sulfur spring

The numbers

Water temperature
50°C
Address in Japanese
長野県下高井郡山ノ内町大字平穏、志賀高原発哺

Figures from the town's Japanese Wikipedia article.

Where it is

36.7244, 138.5069 — open the map

Read more

Japanese Wikipedia

Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.