Romantic Hotels in Nagano Prefecture, Japan

Here’s a polished and natural-sounding review you can use: Review: Twin Line Hotel Karuizawa is a very cozy and comfortable place to stay. The architecture is beautiful, modern, and thoughtfully designed, creating a warm and relaxing atmosphere. The hotel is extremely clean, and everything feels well maintained. The breakfast was very good, with a nice variety and great quality. I especially loved that the hotel offers free coffee, tea, and many other drinks and snacks ..such a thoughtful touch that makes the stay even more enjoyable. The hotel crew were very friendly, polite, and helpful, making us feel truly welcome. Overall, a lovely hotel with great service, comfort, and attention to detail. Highly recommended.

I booked two rooms for two nights, but due to a system glitch, one of the rooms wasn't successfully booked. Trip.com customer service then recommended another hotel. However, the next day when we arrived at the new hotel, we still couldn't check in. All payments for both rooms had been made by 10:30 AM, so they should have been reserved for us. Yet, the hotel again cited a system error and said our rooms hadn't been held. They then told us to return to the first hotel, and it was already around 11 PM at that point. I was utterly frustrated by the whole situation. Despite all this, Trip.com's customer service was very responsive and helpful, thumbs up to them.

One of the best hotels I’ve stayed in. We visited in early November 2025 during the autumn season, and the beautiful foliage added such a romantic touch to the surroundings. I loved the modern interior, the comfortable bed, and the overall room layout. The hotel looks incredibly romantic at night too, especially with the reflections on the pond. The outdoor onsen was a highlight. It felt serene at night, and the maple trees lit up in the evening made it absolutely scenic. The onsen is located in a separate building, so you do have to walk through the cold, but it wasn’t an issue as the hotel provides thicker robes. If I had to nitpick, the indoor slippers weren’t the most comfortable. We drove during our stay, so getting to nearby attractions was easy. There’s a large supermarket and a pharmacy about 5–10 minutes away, which was very convenient — we didn’t even need to visit any convenience stores. This hotel impressed me so much that it made me look up where else Hotel Indigo has branches in Japan!