Tsukahara Onsen
Yufu, Oita Prefecture, Japan
- Location
- Yufu, Oita Prefecture, Japan
- Water type
- sulfurous
- Temperature
- 44 °C
- pH
- 6.5
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Located in Yufu, Oita, Kyushu, Japan, Tsukahara Onsen is a unique thermal site offering an authentic experience. This sulfurous thermal spring has been enjoyed for centuries within a long thermal tradition. Visitors can relax and rejuvenate in the natural hot water, surrounded by scenic landscapes. The onsen's rich history and cultural significance make it a must-visit destination.
Insider tip — Tsukahara Onsen occupies the volcanic flanks of Mount Tsurumi on the Kunisaki Peninsula in Oita, Japan's most onsen-dense prefecture, where milky sulfurous waters emerge from fumarolic vents at the 1,375-meter summit area. The remote highland setting means most bathers are serious onsen pilgrims rather than casual tourists, and the views from the outdoor rotenburo extend across the Beppu Bay coastline on clear days. The water's acidity is high enough to tingle on sensitive skin, a hallmark of authentic volcanic onsen.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 44 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).