Yusaya Ryokan Main Building

Yusaya Ryokan: A Living Cultural Heritage in Naruko Onsen

Nestled in the heart of Naruko Onsen, one of the most celebrated hot spring towns in Japan's Tohoku region, Yusaya Ryokan has been welcoming guests for nearly four centuries. Founded in 1632 during the early Edo period, this traditional wooden inn is not just a place to stay — it is a living piece of Japanese cultural history. Designated as a Registered Tangible Cultural Property by the Japanese government in 2000, the main building of Yusaya Ryokan preserves the architectural elegance and warm hospitality of a bygone era, offering international visitors a rare opportunity to sleep within the walls of a protected heritage structure.

A History Spanning Nearly Four Centuries

The story of Yusaya Ryokan begins in 1632 (Kan'ei 9), when the first generation of the Yusa family established a hot spring lodging house in the Naruko area. The Yusa clan, who had formerly served the Uesugi family of Echigo Province, settled in this region and were entrusted by the Date clan of the Sendai domain with the role of yumori (hot spring custodian) for the historic Taki-no-Yu communal bathhouse — believed to be the birthplace of Naruko Onsen itself, with origins traced back to a volcanic eruption in 826 AD.

This sacred responsibility has been passed down through the generations, and the current proprietor, the 17th-generation Yusa Kanzaemon, continues to oversee both the ryokan and the custodianship of Taki-no-Yu. Few accommodations in Japan can claim such an unbroken lineage of stewardship over a hot spring tradition spanning nearly 400 years.

Architectural Significance and Cultural Property Designation

The current main building of Yusaya Ryokan was reconstructed in 1936 (Showa 11), following a design that preserves the architectural style and layout believed to have been maintained since the Edo period. The building is a two-story wooden structure in the irimoya-zukuri (hipped-and-gabled roof) style with tile roofing and metal-clad lean-to extensions. It boasts an impressive frontage of approximately 11.5 ken (about 21 meters), with the first floor centered around rooms for long-stay hot spring therapy (toji) guests, and the second floor featuring premium guest rooms facing the main road.

On October 18, 2000, the main building was officially registered as a Registered Tangible Cultural Property (architectural structure) by the Agency for Cultural Affairs. The designation recognizes the building as a structure that would be difficult to reproduce, and acknowledges its importance as a surviving example of traditional Japanese inn architecture from the early Showa period. Notably, a long single-log beam stretches the entire length of the building's facade — approximately 12.5 ken — and thick chestnut-wood pillars support the lobby area, showcasing the exceptional craftsmanship of the era.

The building has a total floor area of approximately 695 square meters. Although renovations were carried out in 1962, the fundamental column positions and layout have been preserved, maintaining continuity with the original architectural design.

The Legendary Unagi-yu: A Hot Spring Like No Other

Yusaya Ryokan is renowned as the birthplace of Unagi-yu (literally "Eel Bath"), a registered trademark name inspired by the exceptionally silky, slippery texture of the alkaline hot spring water. The sensation of bathing in this mineral-rich water has been compared to the smooth, slippery skin of an eel — a characteristic that has made it famous throughout Japan.

The spring water is classified as a mildly alkaline sulfate spring (teichosei jaku-arukari-sei sen), known for its beneficial effects on joint pain, neuralgia, and skin health. One of its most fascinating features is that the water changes color depending on the weather, temperature, and humidity — sometimes appearing in shades of olive green, milky white, or translucent blue.

Guests of Yusaya Ryokan can enjoy three distinctly different bathing experiences: the signature Unagi-yu indoor bath within the ryokan, the private open-air rotenburo called Akane-no-Yu set in the forested hillside across the road, and the historic Taki-no-Yu communal bathhouse next door — a sulfur-rich acidic spring with a completely different character from the gentle alkaline waters of Unagi-yu. This variety of hot spring types within a single stay is a rare and luxurious experience.

Highlights and Visitor Experience

Staying at Yusaya Ryokan is like stepping back in time. Walking through the wooden corridors, guests can hear the gentle creaking of aged timber underfoot — a quintessential feature of traditional Japanese wooden architecture. The interiors blend retro charm with understated elegance, featuring seasonal flower arrangements and carefully chosen antique furnishings throughout the common areas.

All guest rooms are traditional Japanese-style tatami rooms, each with its own unique layout and character. As a cultural property, the rooms do not have private baths or toilets, preserving the authentic atmosphere of a historic hot spring inn. Meals are served in-room and feature monthly-changing Yamazato Ryori (mountain village cuisine), highlighting seasonal local ingredients from Miyagi Prefecture. The creative dishes combine traditional Japanese cooking techniques with modern touches, earning high praise from guests.

Check-in begins at 2:00 PM and check-out is at 10:00 AM. Free parking is available. The ryokan is located approximately a 4-minute walk from JR Naruko Onsen Station, making it easily accessible even for travelers without a car.

Exploring the Surroundings

Yusaya Ryokan is ideally situated for exploring the many attractions of the Naruko Onsen area. The town itself is known as a center for Naruko kokeshi, the traditional wooden dolls with heads that squeak when turned. Visitors can explore kokeshi workshops, try their hand at kokeshi painting experiences, and discover delightful kokeshi-themed spots throughout the town, from mailboxes to telephone booths.

Key nearby attractions include:

• Taki-no-Yu Communal Bathhouse — Right next door to Yusaya, this historic public bath features milky white sulfur water in a beautiful all-cypress building. Yusaya guests can enter free of charge.
• Naruko Gorge (Naruko-kyo) — A spectacular V-shaped canyon about 10 minutes by car, famous for its breathtaking autumn foliage from late October to early November and fresh greenery in spring and summer.
• Japan Kokeshi Museum (Nihon Kokeshi-kan) — Houses approximately 5,000 traditional kokeshi dolls from across the Tohoku region, with live craft demonstrations and painting workshops.
• Kata-numa (Lagoon) — A mysterious caldera lake whose color shifts between emerald green and deep blue depending on weather conditions. Boat rentals and lakeside walks are available in warmer months.
• Naruko Onsen Shrine — A 5-minute walk from the station, this shrine is associated with the origins of Naruko Onsen and offers blessings for good health, safe childbirth, and matchmaking.

The broader Naruko Onsen resort area encompasses five distinct hot spring zones, offering an extraordinary variety of water types — nine of Japan's eleven recognized spring classifications can be found here. For hot spring enthusiasts, this is one of the richest bathing destinations in the entire country.

Access Information

Naruko Onsen is conveniently accessible from Tokyo and Sendai. From Tokyo Station, take the Tohoku Shinkansen to Furukawa Station (approximately 2 hours 15 minutes), then transfer to the JR Rikuu-Tosen Line and ride to Naruko Onsen Station (approximately 40–45 minutes). The ryokan is about a 4-minute walk from the station. By car, take the Tohoku Expressway to the Furukawa Interchange, then follow National Route 47 toward Naruko for approximately 40 minutes.