Akiu Onsen is one of Japan's oldest hot spring resorts, located 15 kilometers southwest of Sendai in Miyagi Prefecture. This historic onsen town has been welcoming visitors for over 1,500 years, with legends claiming that Prince Yamato Takeru discovered the healing springs during the ancient Yamato period. The resort gained prominence during the Edo period when Date Masamune, the renowned feudal lord of Sendai, used it as his personal retreat.
The hot springs are renowned for their sodium chloride and sulfate-rich waters, which emerge from the earth at temperatures reaching 60°C. These therapeutic waters are believed to treat skin conditions, muscle fatigue, and joint pain. The onsen sits within a scenic valley surrounded by forested hills along the Natori River, creating a tranquil setting that exemplifies Japan's traditional hot spring culture.
Visitors can experience authentic onsen bathing at several ryokan (traditional inns) and day-use facilities, with Hotel Sakan and Iwanumaya being among the most established properties. The area features both indoor and outdoor baths (rotenburo) offering mountain views. Beyond bathing, guests can explore Akiu Great Falls, a 55-meter waterfall located nearby, and visit the Akiu Craft Park for traditional pottery and glassmaking experiences.
Spring brings cherry blossoms to the valley, while summer offers hiking opportunities in the surrounding forests. Autumn transforms the landscape with vibrant foliage, making it the most popular season for visitors. Winter provides a serene snow-covered setting ideal for hot spring bathing, though some outdoor activities may be limited.
Akiu Onsen is accessible by bus from JR Sendai Station, with services departing every 30 minutes during peak times. The journey takes approximately 30 minutes and costs around ¥770. Most ryokan offer package deals including accommodation, meals, and onsen access starting from ¥15,000 per person per night. Day-use onsen facilities typically charge between ¥700-1,500 for admission. No advance reservations are required for day visits, though booking is essential for overnight stays, particularly during autumn and holidays.