Itamuro Onsen — relief & relaxation | Compare & book inns

Overview

Itamuro Onsen's history dates back to the late Heian period, when it was reportedly discovered by Munetaka, the father of the famed samurai Nasu no Yoichi. During the Edo period, it was counted among the "Nasu Shichito" (Seven Hot Springs of Nasu) and became beloved by many as the "Medicinal Waters of Shimotsuke." This tradition continues today, with a charming, tranquil atmosphere and several inns specializing in long-term therapeutic stays (toji).

The onsen town, stretching along the clear Naka River, is enveloped by the magnificent nature of Nikko National Park, offering beautiful scenery in every season. The bathing style, which involves soaking leisurely in the lukewarm water, is perfect for releasing physical and mental tension and guiding you into a state of deep relaxation. It's an ideal place to escape the hustle and bustle of daily life and spend time reconnecting with yourself.

Primary Spring Type and Health Benefits

The star of Itamuro Onsen is its alkaline simple thermal spring, which is colorless, odorless, and tasteless. Known for being gentle and non-irritating, it's a water that is kind to the body. Its higher pH level is said to help soften old skin cells, leaving your skin feeling smooth. It is truly a spring suitable for everyone.

• Autonomic instabilitySoaking in lukewarm water has a sedative effect, helping to calm an overactive nervous system. This can help balance the body's autonomic functions, easing the tension and instability that contribute to various stress-related symptoms.
• InsomniaThe deeply relaxing effect of a long soak in warm water can help prepare the body for restful sleep. By calming the nervous system and gently raising body temperature, it may ease the transition into sleep and improve overall sleep quality.
• Depression
• CutsThe gentle, low-irritant nature of this Simple Onsen provides a clean environment for healing minor wounds. Soaking may help improve circulation to the affected area, supporting the body's natural recovery process without causing additional skin stress.
• Poor circulation
• Decreased gastrointestinal function

Water Characteristics and Best Season to Visit

The most notable feature is the lukewarm water temperature, ranging from 38°C to 41°C. This puts less strain on the heart and allows for long, relaxing soaks, making it ideal for therapeutic bathing (toji) as it warms the body to its core. Many facilities offer free-flowing spring water (gensen kakenagashi), allowing you to enjoy the fresh, pure onsen.

While the lukewarm waters can be enjoyed year-round, spring, with its vibrant green foliage, and autumn, with its beautiful fall colors, offer an exceptional onsen experience combined with the surrounding natural beauty. The ability to enjoy it differently each season—refreshingly in summer, and by warming up slowly and thoroughly in winter—is part of its charm.

Access

Nearby Sightseeing & Local Cuisine

• Itamuro Onsen Shrine: The guardian deity of the hot spring, located in the heart of the onsen town.
• Otome Falls: A beautiful 10-meter high, 5-meter wide waterfall. Refresh yourself with its negative ions.
• Momijidani Suspension Bridge: One of Japan's longest pedestrian suspension bridges at 320 meters.
• Nasu Animal Kingdom: A vast theme park where you can interact with various animals.
• Senbonmatsu Farm: Enjoy horseback riding, interacting with animals, and fresh dairy products.
• Nasu Wagyu Beef: A premium brand of beef from Tochigi Prefecture. Enjoy it as steak or yakiniku.
• Highland Vegetables: Fresh vegetables grown in the cool climate. Available at local markets.
• Dairy Products: Cheese and soft-serve ice cream made from fresh milk of the Nasu Highlands.