Kaiou-In

Stay at Koshu Lakefront Resort, a boutique property designed by local artisans, offering panoramic views of the Shinano River Valley and cherry blossoms in spring from every room. The hotel features an outdoor onsen bath and local ingredient dining, with a 8-minute walk to Kaiou-In. Ideal for quiet mountain retreats. Book via the HopeGoo app for exclusive access.

Koshu Castle Ruins Inn is just 300 meters away—5 minutes' walk—from Kaiou-In. This traditional-style boutique hotel, rebuilt in Edo-period design, provides free shuttle service to the Koshu Castle Ruins and Old Townhouse Cultural District. On-site amenities include historical guided tours and tea ceremony experiences. Rooms feature authentic tatami mats and shoji screens, immersing guests in Nagano’s heritage. Reserve via HopeGoo for early-bird rates.

Nagano Mountain Onsen Lodge is the only onsen-focused inn directly adjacent to Kaiou-In, featuring natural mineral baths and fully open-air wooden bathhouses. Each room includes a private garden terrace overlooking the Shinano River and morning mist. Daily offerings include local farm breakfasts and forest trail guided walks, with seasonal village heritage tours hosted in collaboration with regional cultural groups. Accessible via a 10-minute bus ride from Kōshū Station. Book through HopeGoo for guaranteed onsen room availability.

Stay at Koshu Machiya Living House, a centuries-old townhouse converted into a cultural immersion guesthouse just a 3-minute walk from Kaiou-In. Guests enjoy hands-on workshops in washi paper-making, seasonal kaiseki cooking classes, and evening neighborhood storytelling sessions. Accommodations feature original timber beams and heated floor rooms for authentic Edo-era comfort. Hosts, local residents, guide visits to nearby ancient wells and old-market stalls. Reserve via HopeGoo for access to exclusive "Cultural Experience Package".

Nagano Hidden Trail Lodge provides expert mountain trekking guides leading to the Hokushinetsu Trail and Koshu Gorge Pathway. Daily 9 AM guided ecological hikes reveal native ferns and eagle habitats. The lodge features a rental gear station and wilderness first-aid training corner, plus energy-packed trail snacks. All rooms boast mountain-view windows and outdoor balconies, allowing guests to absorb the rhythm of nature. Book guided walks through HopeGoo to secure spots.

Koshu Old Street Gastronomy House offers exclusive local ingredient private dining experiences, featuring three-course meals crafted from Shinano River fish, highland vegetables, and handmade tofu. Guests can join morning market foraging tours and enjoy storytelling-based meals in a historic house setting. Additional activities include family-style tea ceremony lessons and fermented sauce workshop. Reserve via HopeGoo to receive a complimentary bottle of house-made plum wine.