I Looked Into Unzen Kyushu Hotel

Besides campsites and day-use hot springs, I also make a habit of looking into inns and hotels that catch my interest every now and then, and keeping a record of them. This time, I put together another one of those "hotel-cation detour" posts.

What got me curious about Unzen Kyushu Hotel was coming across the fact that every single room there comes with a hot spring bath, either semi-open-air or fully open-air. I'm pretty much an indoor type and don't have much connection to hot spring trips in general, but the idea of a hot spring that's entirely self-contained within the room itself was appealing even to someone like me who isn't too keen on going outside.

Founded in 1917, a Historic Hotel Right in Front of Unzen Jigoku

Unzen Kyushu Hotel is located in the hot spring town of Unzen City in Nagasaki Prefecture, and apparently it's a long-established hotel opened in 1917 by a man named Tatsuma Shichijo. It seems there are records of guests such as Nobel Prize in Literature winner Tagore (1924), Chiang Kai-shek (1927), and even Emperor Showa and Empress Kojun (1949) having stayed there, and it's presented as an inn with over a hundred years of history.

Even with all that history behind the building, it apparently underwent a major renovation involving a full rebuild in 2018, being reborn as an "adults' resort hotel" where every room now comes with a hot spring bath, either semi-open-air or fully open-air. The architectural concept is described as "a beautiful blend of retro and modern design incorporating Nagasaki's Wakaran culture, a fusion of Japanese, Chinese, and Western influences," and apparently the entrance lobby is also designed as a space evoking that same Wakaran-inspired atmosphere.

As for reservations and inquiries, the official site listed the following kind of information.

• Phone reception hours: 9:00 AM to 5:30 PM (it seems reservations by phone are also accepted)
• How to book: Online booking through the official site appears to be the main method (using an external reservation system), and it seems online bookings are limited to up to 3 people, with a phone inquiry required for groups of 4 or more
• Rates: I couldn't find any specific pricing listed directly on the official site, so it looks like you'd need to check through the external reservation system
• Check-in / check-out: I didn't find a page that clearly states the official times, but based on the guest experience program schedule, it seems check-in is likely around 3:00 PM and check-out around 11:00 AM

Komorin

Hearing that Emperor Showa and Empress Kojun once stayed here makes even an indoor type like me want to at least soak up the atmosphere once. Of course, I haven't actually been there myself.

A Hot Spring in Every Room, an Adults-Only Resort Space

Apparently there are two main types of rooms available. The main building's "Guest Wing Terrace" rooms range from about 14 to 21 tatami mats in size (61.98 square meters), and seem to include Premier Twin, Premier King, and Universal Design Twin configurations, each with a terrace and semi-open-air hot spring bath. The other option is a villa-type room called "Unzen-tei Detached Villas," with two rooms each of types A and B, offering roughly 90-plus square meters of space complete with an open-air hot spring bath, sauna, cold plunge, and terrace. It struck me as a fairly spacious layout.

The beds apparently use luxury and premium class models from the American brand Sealy, and the in-room amenities reportedly come from the UK hotel amenity line by Aromatherapy Associates. This all seems to reflect the hotel's commitment to being an "adults' resort."

There's no large communal bath here, so the main way to bathe seems to be the semi-open-air hot spring bath included in every room. The water quality is apparently a cloudy white sulfur spring known as Jigoku sulfur spring, and since it's a natural hot spring, the official FAQ page mentions that on some days, depending on the season, water and heat may be added. It looks like they're upfront about the fact that it's not a fully continuous natural-flow bath every single day. Also, since it's a sulfur spring, guests are apparently asked to remove any metal jewelry before bathing.

Other facilities on-site apparently include a steam bath experience, a water terrace that doubles as a photo spot, a cafe and bar, the main dining room in the restaurant building, and a rooftop lounge and terrace on the top floor. The guest experience program introduced seems to follow a flow starting with a welcome service at check-in, followed by the steam bath experience, a pre-dinner aroma cocktail themed around Unzen Jigoku, a late-night bowl of "Unzen Jigoku Nimen" noodles, bathing time from 8:30 PM, a morning detox breakfast, and photos on the rooftop. It gives the impression that the experience is thoroughly packed into just a single night's stay.

Also, right in front of the hotel is Unzen Jigoku, the symbol of Unzen hot spring area, described as accessible with zero walking distance. The entire building is non-smoking, with smoking only allowed on the room terraces. There's no dedicated barrier-free room, but apparently there is one universal room available, along with wheelchair rentals offered on a first-come, first-served basis. Since there's no gift shop on-site, it might be worth keeping that in mind if you need to pick up souvenirs.

Rakuten Mobile Signal Conditions

I checked this location using the official My Area Connectivity Simulation tool, and the overall rating came out as "C." Sharing that here as well.

While the location right in front of Unzen Jigoku is appealing, the surrounding area is a hot spring town nestled among mountains, so it might be reassuring to check the connectivity situation ahead of time. If Rakuten Mobile is your main line, it's probably worth factoring this result into how you plan to use your phone during your stay.

Komorin

I use Rakuten Mobile myself, so hearing about a "C" rating gives me a little jolt. It also caught my attention that I couldn't find any clear mention on the official site about whether in-house Wi-Fi is available.

Wrapping Up

Putting it all together, my impression of Unzen Kyushu Hotel is that despite carrying a history dating back to its founding in 1917, it has been reborn as an adults-only resort hotel where every room comes with its own hot spring bath, either semi-open-air or fully open-air. Between its location right across from Unzen Jigoku and how packed the guest experience program is, it feels like the kind of place meant for a slow, immersive stay.

The Rakuten Mobile signal rating came out as a "C," so if that's your main carrier, it might be worth checking ahead of time for peace of mind. If you're curious, it seems like a good idea to check the official Rakuten Mobile tool yourself using your actual planned accommodation location.

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Related Links

• Official Site