Kōgane Castle Onsen Ryokan offers spacious tatami rooms with private outdoor baths overlooking the surrounding forest. Just a 3-minute walk from the historic site, it features complimentary shuttle service to downtown Annaka. The property serves traditional kaiseki meals and provides heated floors for winter comfort. Book through the HopeGoo app for exclusive bundled deals

Yes, Sakura no Tei is just 50 meters south of Kōgane Castle ruins, offering authentic Gunma cuisine like "Annaka beef sukiyaki" and handmade soba noodles. The restaurant preserves Edo-period wooden architecture and features a scenic terrace with views of the castle remains. Limited seating daily—reserve via HopeGoo to secure lunchtime access

Kōgane Castle Eco Resort offers free bicycle rentals to explore trails along the Oto River and the Hachiman Mountain maple grove. The property provides guided audio tours and heritage maps detailing local history and biodiversity. Weekly Saturday excursions to ancient burial mounds are available—book your spot via the HopeGoo app for an immersive experience