Hydrotherapy, or water therapy, is a form of alternative medicine that utilizes the properties of water—such as temperature, pressure, and movement—to promote health, relieve discomfort, and support physical recovery. It can involve hot water, cold water, or alternating temperatures to stimulate different systems within the body.

Onsen, or natural hot spring water, is one of the most recognized forms of Hydrotherapy, especially in Japan, Europe, and Thailand—where natural hot springs are rich in minerals that benefit overall health.

Onsen bathing works through a combination of water temperature and natural mineral content, providing the following health-supporting effects:

▫︎ Hot Water (40–42°C)

☑︎ Dilates blood vessels and boosts circulation
☑︎ Relaxes muscles, relieving joint pain and body aches
☑︎ Activates the parasympathetic nervous system, promoting calmness and relaxation

▫︎ Warm Water (37–39°C)

☑︎ Ideal for general recovery and stress relief
☑︎ Helps the skin retain moisture from mineral-rich water

▫︎ Cold Immersion (~18°C)

☑︎ Stimulates circulation and strengthens immunity
☑︎ Reduces inflammation and swelling in muscles and joints
☑︎ Supports fat metabolism and enhances overall body balance

Onsen bathing is a powerful form of Hydrotherapy that can aid recovery, ease pain, strengthen immunity, and support long-term well-being when practiced correctly.

Rak Ranong Hot Spring offers Functional Onsen using pure natural hot spring water from the renowned Raksawarin Hot Spring, one of Thailand’s most famous geothermal sources. The mineral-rich thermal water enhances health according to the principles of Hydrotherapy—effectively, naturally, and holistically.

Relax your body, calm your mind, and indulge in a serene atmosphere at Rak Ranong Hot Spring.