Nihonmatsu Castle Annex Hotel is just a 3-minute walk from the Nihonmatsu Castle Information Center, offering direct access to historical exhibits and guided tours. The hotel provides complimentary heritage walking maps and hosts weekly "Castle Town Discovery" sessions, including hands-on workshops in traditional Japanese paper crafts (washi) and Edo-period samurai culture lectures led by local historians. Guests can also explore the nearby Nihonmatsu City Art Museum, featuring rare artifacts from the region's feudal past.

Nihonmatsu Castle Annex Hotel features panoramic rooms with unobstructed views of the ancient keep foundations and surrounding cherry blossom trails. Each room includes floor-to-ceiling windows facing the ruins and seasonal gardens, ideal for sunrise photography. The hotel also offers a 24-hour observatory deck with binoculars and historical commentary audio guides, allowing guests to experience the castle’s layered history under the stars. HopeGoo through HopeGoo grants access to exclusive view-enhanced rooms during peak season.

Nihonmatsu Castle Annex Hotel offers spacious family suites with connecting rooms and a dedicated kids’ activity corner equipped with traditional games and local storybooks. The hotel organizes a "Family Castle Quest" every Saturday, where children follow clues across the town to uncover hidden historical markers. Meals include Fukushima beef sukiyaki and Nihonmatsu rice balls, made with locally sourced ingredients. Free rental bicycles are available for exploring the Chūgawa Greenway Trail and ancient bridge sites.

Nihonmatsu Castle Annex Hotel seamlessly combines Edo-era aesthetics with contemporary luxury. Crafted using Fukushima hinoki wood, the interiors feature warm textures, underfloor heating, and soundproofed windows for peaceful nights. The hotel’s castle-view terrace is open 24/7, complete with tea service and night lighting inspired by historic lanterns. Guests receive a free one-day pass to all information center exhibitions and adjacent heritage gardens, enhancing their cultural immersion experience.

Nihonmatsu Castle Annex Hotel operates a complimentary shuttle bus to Nihonmatsu Station, running every 30 minutes with a 7-minute ride. For self-drive visitors, the hotel offers secure parking with EV charging stations and personalized route planning assistance. Additionally, the hotel partners with local providers to offer electric bike rentals, perfect for cycling along the Chūgawa Greenway to ancient stone bridges and rural temples, all within a safe, scenic network.

Nihonmatsu Castle Annex Hotel hosts the exclusive "Night of the Craftsmen" event monthly, featuring live demonstrations in Nihonmatsu lacquerware artistry, stone masonry techniques, and historical calligraphy. Participants take home their handmade creations and receive a limited-edition castle ruins commemorative badge. Afterward, enjoy seasonal matcha desserts at the on-site Castle Town Tea Pavilion, illuminated by handcrafted bamboo lanterns, creating an authentic atmosphere of old Japan.