Overview
Obama Onsen has a long history, with mentions in the "Fudoki" of Hizen Province, ancient records compiled in the Nara period. During the Edo period, it flourished as a therapeutic spa resort managed by the Shimabara clan. Today, about 15,000 tons of hot spring water gush daily from over 30 sources.
The most distinctive feature of this onsen town is its extremely high source temperature of 105°C. This thermal energy is also utilized for local heating, hot water supply, and binary power generation. Along the coast, you'll find "Hot Foot 105," Japan's longest footbath at 105 meters, where you can casually enjoy the onsen with a magnificent view of Tachibana Bay.
Signature Spring Quality and Benefits
The primary spring quality at Obama Onsen is a Chloride Spring. Rich in salt, the water creates a thin veil on the skin that prevents body heat from escaping, earning it the name "Netsu-no-yu" (Water of Heat). It is known for its excellent heat-retention and moisturizing effects, and is said to be beneficial for neuralgia, rheumatism, and women's health issues.
- Cuts
- Poor circulation
- Sensitivity to cold
- Dry skin
- Weak gastrointestinal function
Water Characteristics and Best Season
Due to the extremely high source temperature of 105°C, many facilities add cool water to adjust the bath temperature. However, thanks to the abundant water volume, you can still find many baths with free-flowing, pure spring water. The salty water warms the body to the core. The sight of the sun setting over Tachibana Bay is breathtaking, with the best views during autumn and winter when the air is clear. In summer, it's great to combine onsen with beach activities.
Access
Facilities with Analysis Reports
No facilities with registered analysis reports in this area yet.
Facilities Without Analysis Reports
Nearby Sightseeing and Local Cuisine
- Hot Foot 105: Enjoy panoramic views of Tachibana Bay from Japan's longest footbath.
- Mushigama (Steam Pots): Experience steaming fresh seafood and vegetables using natural onsen steam.
- Obama Chanpon: A local noodle dish featuring a light, seafood-based broth.
- Sunset over Tachibana Bay: A stunning view selected as one of Japan's 100 best sunsets.
- Unzen Hells (Jigoku): A 20-min drive away, witness volcanic activity with clouds of white steam.
- Yu-senpei: A traditional, lightly sweet cracker made with onsen water.
- Fresh Seafood: Savor dishes made with fresh catches from Tachibana Bay.
References
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