Soaking in hot springs can be incredibly healing – Japan’s dreamy hidden hot spring spots revealed

By / MOOK Scenic Spots Family Travel Life Network Editorial Department compiled and reported
 
As successive cold waves sweep in, warm and cozy hot springs have become a top choice for travelers. Hidden hot springs (秘汤), often nestled in serene mountain forests away from the hustle and bustle, combined with their therapeutic properties, are regarded as one of Japan’s treasures. To that end, tourism operators have released a list of Japan’s “Top Five Ultimate Therapeutic Hidden Hot Springs,” carefully curated for hot spring enthusiasts.

●ComeExperience the 300-year-old Takumi-no-Yu at the Unagi-yu House
“Takumi-no-Yu” is ranked as Miyagi Prefecture’s most popular hidden hot spring. Since 300 years ago, it has been known as “Unagi-yu” (Eel Hot Spring) due to its association with Japan’s eels. Although the hot spring here is strongly alkaline, it is rich in sodium bicarbonate sulfate with sulfur powder, giving it a skin-toning effect that helps improve eczema and beautify the skin—making it a top pick for women.

● The Longevity Spring Hidden in Iwai Onsen-ya
Iwai Onsen-ya in Tottori Prefecture is known as the area’s oldest inn, where both the hot spring bath water and shower water come directly from the source. One of its famous features is the “Longevity Spring,” where the water level can reach above the chest when you step in. Meanwhile, the open-air bath “Mizuguruma-an,” surrounded by bamboo fences and available for free private reservation, is also extremely popular.

● Shoukichi-no-Yu for Relaxation and Healing
Located among the mountains of Okushita, “Shoukichi-no-Yu” is famed for its strongly alkaline medicinal hot spring. Its thick, milky water not only beautifies the skin but also relieves fatigue and treats conditions such as frozen shoulder, arthritis, poor blood circulation, and chronic digestive diseases. While soaking in the open-air bath, you can also enjoy views of the beautiful mountains of Okushita, making it a favorite among visitors.

●The Hakukei Hot Spring: Soak for Three Days, Stay Cold-Free for Three Years
Hakuju Grand Hotel, just a few hours’ drive from Tokyo’s suburbs, features a simple hydrogen sulfide spring known as “Hakukei Hot Spring” (White Bone Hot Spring). It continues to attract visitors thanks to its benefits for intestinal health, diabetes, and skin beautification. Legend says that soaking in Hakuju Hot Spring for three days keeps you free from colds and illness for the next three years.