ThermaeExplore the map →

Mahora Ina Habiro Onsen

Ina, Nagano, Japan
Mahora Ina Habiro Onsen
Location
Ina, Nagano, Japan
Water type
thermal
Temperature
40 °C
pH
7.3

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Balancing
LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesCalcium

Mahora Ina Habiro Onsen—Magnificent Wide Open Ina Spring—takes its name from mahora (magnificent, awe-inspiring open space), ina (the Ina Valley of central Nagano Prefecture), and habiro (wide, broad), creating a name that celebrates the extraordinary spatial quality of the Ina Valley—one of Japan's longest and most scenically dramatic river valleys, stretching between the Southern Alps to the west and the Central Alps (Kiso Mountains) to the east, enclosed by two of Japan's most imposing mountain ranges in a valley of exceptional width and agricultural productivity. Simple alkaline waters provide the gentle mineral soak that complements the expansive, open-sky character of the Ina Valley landscape, where the rare combination of width, altitude, and double alpine enclosure creates one of Japan's most dramatically framed valley panoramas. This spring's magnificent open Ina Valley name captures the spatial grandeur of Nagano's most scenically expansive river corridor.

Insider tip — Mahora Ina Habiro Onsen occupies a scenic position above the Ina Valley in central Nagano, with the Southern Alps visible to the west and the Central Alps to the east. The simple alkaline waters emerge at a comfortable temperature ideal for extended bathing sessions after hiking the surrounding ridgelines. The resort combines traditional onsen bathing with panoramic views across one of Nagano's widest and most fertile valley floors.
Find hotels nearby →Tickets & activities →See the map & practical info →

Nearby

Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).