Hot Spring
Onsen
Our Commitment to 100% Natural, Free-Flowing Hot Spring Water
A Natural Hot Spring Rich in Approximately 1.3 kg of Mineral Content
The first in Shizuoka Prefecture,
featuring natural hot spring baths flowing directly from the source in every guest room.
Natural hot spring water sourced directly from within the property is delivered to each guest room with no dilution or recirculation, flowing straight from the source. Thanks to our private spring, the water remains fresh and unaltered, allowing you to enjoy an authentic onsen experience at any time.
Hot Spring Quality & Benefits
Glam Aira’s private natural hot spring is a Calcium-Sodium Sulfate and Chloride Spring, classified as a hypotonic, mildly alkaline, high-temperature spring.
Rich in sulfate ions, which are associated with maintaining skin firmness, and metasilicic acid, a naturally occurring moisturizing component, this high-quality natural hot spring gently warms the body from within while helping your skin retain moisture and warmth even after your bath.
Spring Quality: Calcium-Sodium Sulfate and Chloride Spring
(Hypotonic, Mildly Alkaline, High-Temperature Spring)
Source Temperature: 48.3°C (118.94°F)
pH Level: 8.02 (Mildly Alkaline)
Indications: Minor cuts, sensitivity to cold, dry skin, peripheral circulatory disorders, and more.
Rich hot spring water containing approximately 1.3 kg of mineral components.
Each guest room bath contains approximately 1.3 kg of naturally occurring hot spring minerals—a concentration equivalent to roughly 40 commercially available bath salts.
Our goal is to deliver these valuable hot spring minerals to you without compromising their natural qualities in any way.
Our private natural hot spring, rich in minerals, flows directly from the source to each guest room. By offering a private hot spring bath in every room rather than a communal bath, we can preserve the water’s freshness and the rich, natural mineral content of the spring just as it emerges from the earth.
This commitment to delivering the spring water in its purest, freshest state is at the heart of what Glam Aira’s “fresh-from-the-source hot spring” is all about.
6 Commitments to
“Fresh-from-the-Source Hot Spring” at Glam Aira
1
No Dilution
(Never diluted or cooled)
Our natural hot spring emerges from the source at 48.3°C (118.94°F).
Thanks to this naturally ideal temperature, there is no need to add even a drop of tap water to cool the spring water.
You can experience the water’s naturally pure, 100% mineral content just as it is provided by nature.
2
No Reheating
(Never artificially heated)
At 48.3°C (118.94°F), there is no need to reheat the water with a boiler.
We preserve its natural heat and deliver the spring water in its freshest state.
3
No Recirculation
(Never reused)
Rather than recirculating used water, fresh spring water continuously flows into the bath and overflows, creating a completely free-flowing system.
4
No Chemical Disinfection
(No disinfectants added)
Because the spring water is constantly replaced with fresh water, there is no need to use chlorine-based disinfectants.
This provides a gentle bathing experience, even for guests with sensitive skin.
5
No Filtration
(Nothing removed from the water)
We do not use filters that remove mineral components to protect equipment, allowing the natural minerals to remain in the water and reach your skin just as they are.
6
Direct Delivery
(No water left standing)
Our pumps operate 24 hours a day, keeping the storage tank continuously overflowing and eliminating stagnant water.
Freshly drawn spring water is delivered directly to each guest room within five minutes.
Glam Aira’s
Hot Spring Mineral Composition
Sulfate Ions 1,583 mg
The most abundant mineral component found in Glam Aira’s natural hot spring water.
A key component of this spring’s distinctive mineral profile, traditionally associated in Japan with hot springs known as “healing springs.” After bathing, it helps leave your skin feeling smooth and refreshed, while providing a pleasant and soothing bathing experience.
Calcium Ions 530.5 mg
Calcium is present in relatively high concentrations compared with many hot springs across Japan.
Known for its rich, distinctive bathing sensation, it gently warms the body from within and leaves you with a comfortable, lasting warmth after bathing.
Sodium Ions 358.7 mg
This mineral helps support the spring’s moisturizing qualities by forming a veil of moisture over the skin, helping it stay hydrated after bathing.
Enjoy a soft, silky bathing experience.
Chloride Ions 322.7 mg
A key component of chloride springs, helping to warm the body as if gently enveloping it.
Heat is retained even after bathing, allowing a pleasant, soothing warmth to linger.
Metasilicic Acid 51.0 mg
A rare hot spring component often referred to as a natural moisturizing ingredient.
It helps moisturize the skin, leaving it feeling smooth and supple after bathing.
pH 8.02 (Mildly Alkaline)
A gentle, mildly alkaline hot spring.
Its ability to soften the outer layer of the skin is one of its distinctive qualities, leaving your skin feeling smooth and silky.
