Onsen – A Natural “Elixir” for Health
There is a well-known quote that resonates deeply: “Treat your body like a temple, not a wooden hut. When you care for it properly, your body can take you anywhere you wish to go—with all the power, strength, energy, and vitality you need". If you truly value your own “temple,” you should be acquainted with one of the most powerful and restorative therapies available today: onsen.
A “Miracle Cure” for Body and Mind
In countries where the so-called “smokeless industry” is highly developed, travel is no longer merely about leisure—it has evolved into a journey of distinctive wellness experiences. Visitors go to South Korea for salt stone baths, to India to practice meditation, and to Japan to immerse themselves in onsen culture. In particular, hot mineral spring retreats have become a mainstream global travel trend, especially as human health faces growing threats from pollution and pandemics.
According to data from Global Wellness Institute, as of 2017 there were more than 34,000 hot spring facilities operating across 127 countries worldwide. Today, Asia–Pacific and Europe dominate the sector, accounting for 95% of global revenue and 94% of total facilities—clear evidence of the strong and enduring appeal of hot spring wellness tourism.

Onsen bathing is among the world’s most beloved wellness-oriented travel experiences.
More than ever, people are rediscovering the boundless healing power of nature. In this era, what we seek is no longer medication taken only after illness strikes, but rather pristine natural therapies that can help prevent disease and restore balance. Staying at mineral hot spring resorts rich in natural minerals is now widely regarded as receiving a comprehensive “natural vaccine” for the body.
Professor Shinya Hayasaka of the University of Tokyo, who has studied the health benefits of onsen bathing for over two decades, explains: “Soaking in hot water relaxes and dilates the arteries, enhancing blood circulation. This improved circulation is what creates the restorative sensation you feel in a mineral bath—as if the fatigue accumulated throughout the day gently drifts away in a cloud of steam.”

Onsen bathing is a true “miracle cure” for health.
According to Dr. Nguyen Thi Hang, MD, former Deputy Director of the Tue Tinh Institute of Traditional Medicine, onsen offers wide-ranging benefits: “For seniors, onsen helps promote mental calmness and optimism, leading to deeper, more restful sleep. For women, mineral-rich hot springs moisturize the skin, warm the body, enhance blood circulation, leaving the skin smooth, rosy, radiant, and slowing the aging process. For those engaged in intellectual or high-pressure work, hot mineral bathing provides profound relaxation and stress relief…”
As a result, wellness retreats centered on hot mineral springs are no longer just a trend—they have become a lifestyle choice for those who regard health as their most valuable asset.
A Land Blessed with Nature’s Treasure
In Vietnam, the Quang Hanh hot mineral spring in Quang Ninh has long been part of local life, with generations of residents drinking and bathing in the mineral water as a daily habit. Rich in sodium (Na⁺) and chloride (Cl⁻) ions at concentrations of up to 20g/l—along with an exceptionally high boric acid content of 40mg/l—and complemented by minerals such as magnesium, lithium, calcium, sulfur, and carbon dioxide, Quang Hanh mineral water is often described as “miracle water.” It is known to boost immunity, support bone and joint health, improve cardiovascular function, slow aging, and enhance mental clarity.
However, it was not until the launch of Yoko Onsen Quang Hanh—a Japanese-inspired hot spring resort developed by Sun Group and officially introduced in May 2020—that Quang Hanh truly became a dream destination for wellness seekers. Ms. Le Thien Huong from Hanoi shared:
“My family has become ‘addicted’ to bathing in Quang Hanh mineral water. My parents love how refreshed they feel and how their joint pain eases after each soak. As for me, lying in the mineral pool, gazing at the distinctly Japanese scenery amid the peaceful mountains of Quang Hanh, I can feel relaxation permeating every cell of my body.”

Yoko Onsen Quang Hanh is nestled in a pristine, tranquil valley.
What makes Yoko Onsen Quang Hanh so captivating is its diverse range of therapeutic baths: stone baths that help relieve joint pain for seniors, stress-relief pools for those under work pressure, jet pools with gentle hydro-massage to reduce excess fat and nourish the skin, alongside a comprehensive system of multifunctional mineral baths, hot and cold saunas, Himalayan salt stone therapy, and more.
After soaking in the hot mineral pools, guests continue the journey with Loyly sauna rituals, salt stone saunas, cold saunas, and cold plunge pools. This alternating hot–cold bathing sequence, strictly following Japanese onsen standards, allows Quang Hanh’s precious minerals to be absorbed more effectively—supporting detoxification and leaving the skin firm, smooth, and naturally radiant.

Yoko Onsen Quang Hanh offers an authentic Japanese-inspired atmosphere.
While the public onsen zone features expansive open spaces and a full collection of the world’s most popular mineral bathing experiences, the Washitsu – Private Onsen villas deliver a more exclusive and refined lifestyle once reserved for Japanese nobility and samurai. Designed with open layouts, minimalist yet sophisticated interiors, and—most importantly—natural hot mineral water piped directly into each villa, guests can enjoy onsen bathing at any time of day, followed by private sauna sessions within their own retreat, fully embracing a holistic journey of relaxation for body, mind, and soul.