I Looked Into Nasu Kogen no Yado Sansuikaku

On this blog, I keep researching not just campgrounds, but also inns and day-trip hot springs for those times when I feel like saying "forget camping today, let's do a hotel getaway instead" — it's become a sort of ongoing series.

This time, the inn that caught my attention is Nasu Kogen no Yado Sansuikaku, located in Nasu Town, Tochigi Prefecture. When I found out it apparently has in-room baths fed by Omaru Onsen spring water, I felt like this was something even an indoor type like me couldn't just pass by, so I decided to look into it.

What Kind of Inn Is Sansuikaku?

Nasu Kogen no Yado Sansuikaku is apparently a hot spring inn located in the Yumoto area of Nasu Town, Tochigi Prefecture. All 13 rooms are non-smoking, with a breakdown of 5 rooms with in-room baths, 3 Japanese-Western style rooms, and 5 Japanese-style rooms. The building is said to have three floors, but I couldn't confirm whether there's an elevator from the facilities page on the official website, so that remains unclear.

For rates with one night and two meals included, rooms without a bath start from around 24,350 yen for two people sharing a room, while rooms with a bath start from around 40,850 yen for two people sharing — at least as a rough guide. That said, prices seem to vary depending on the dates and plan, so it's probably safest to check the latest rates on a booking site. Check-in is basically between 3:00 PM and 6:00 PM, and check-out is by 10:30 AM, though this may shift slightly depending on the plan. Reservations can apparently be made either through the online form on the official website or by phone.

Komorin

Having as many as five rooms with in-room baths feels pretty rare to me. Being able to relax in a hot spring right in your room seems like reason enough to go.

Checking Out the In-Room Baths, Large Communal Bath, and Private Baths

The rooms with in-room baths come in five types — Genpei, Hisago, Suzaku, Goto, and Shinonome — each apparently differing in size and character. Among them, Genpei is a maisonette-style room of 86.6 square meters, said to have the largest in-room bath in the whole inn. Suzaku and Goto reportedly have a design where you can open and close a lattice door to get an open-air bath feeling, and even just from photos, these looked pretty appealing. These baths mix in fresh water and reheat the natural hot spring water to adjust the temperature, and apparently use circulation filtration for hygiene management.

Besides the in-room baths, there's apparently a large communal bath for men and one for women. These are available 24 hours a day, though the men's and women's sides swap at midnight, and there may be times they're unavailable on nights when cleaning is scheduled. The men's bath was reportedly renovated in 2016 and is filled with the scent of cypress. Both baths seem to be indoor only, with no open-air bath.

There are two private baths: Goyou (capacity of 6, 60 minutes per session, reservation required) and Hora (capacity of 4, 60 minutes per session, reservation required). For overnight guests, these cost 3,300 yen and 2,200 yen (tax included) respectively. You pick up a key at the front desk to use them, and each one is apparently cleaned after every use, which gave me a sense that hygiene is taken seriously here.

In-room amenities appear to include a TV, refrigerator, safe, air purifier with humidifying function, and a washlet-style toilet. The bedding is apparently custom-made, combining a five-layer futon mattress with a high-resilience mattress, which suggests real attention was paid to comfort. However, the information on Wi-Fi was a bit inconsistent — some sources say the rooms have wireless LAN, while the official facilities page explicitly states that Wi-Fi is not available in the rooms and is free only in the lounge and lobby. I couldn't determine which was accurate this time. If you're planning to use Wi-Fi during your stay, it might be safer to confirm directly with the inn beforehand.

Meals, Day-Trip Use, and Enjoying the Surrounding Area

Dinner is kaiseki cuisine using ingredients from Nasu, and guests can apparently choose from three options: a Nasu Wagyu beef plan, a mountain-village kaiseki, and a seasonal market-price selection. Breakfast centers around Japanese-style dishes such as freshly cooked rice and homemade miso soup. Meals are served at the dining area called Mori no An, which seems to offer both table seating and private room seating.

Beyond overnight stays, there's also apparently a day-trip hot spring lunch plan. There are two courses: "Yama no Kaiseki" at 8,850 yen and "Sato no Kaishoku" at 5,550 yen, available only on Sundays, Mondays, Fridays, and Saturdays, with a limit of six groups per day. The price seems to include use of the large communal bath, which struck me as a nice option for a day when you want to relax a bit without staying overnight. Reservations are by phone only and apparently need to be made by the day before.

Nearby attractions include the Nasu Imperial Villa, the Sesshoseki (Killing Stone) rock, and Mount Nasu, and the write-up also mentioned a local favorite set-meal izakaya called Jinya, as well as a spot called Tamaruya where you can enjoy sushi and soba. The official site didn't list exact distances or travel times from the inn, so I couldn't confirm those, but the location seems to let you enjoy both the nature of Nasu and the atmosphere of the hot spring town. There's reportedly a convenience store within a five-minute walk, so picking up small necessities shouldn't be a problem.

Rakuten Mobile Signal Conditions

When I checked the address for the Yumoto area of Nasu Town, Tochigi Prefecture, where this inn is located, using the official "My Area Coverage Simulation" tool, no result came up — instead it displayed a message saying something like "temporarily under maintenance." I tried several times and got the same result each time, so I'm recording the overall verdict this time as "unknown."

Not being able to get an accurate reading was a bit frustrating, but rather than force a guess, I'd rather just share the facts as I actually found them.

Komorin

This is the first time I've had the tool fail to give a result, so it threw me a little. Maybe this kind of thing happens with hot spring areas tucked away in the mountains.

Wrapping Up

To sum it all up, my impression of Nasu Kogen no Yado Sansuikaku is that it's an inn whose real appeal lies in rooms with baths that let you enjoy Omaru Onsen without leaving your room. Between the large communal bath, the private baths, and the kaiseki dinner, there seem to be plenty of touches throughout the inn designed for a relaxed stay, and as an indoor type myself, there was a lot here that caught my interest. That said, a few details remained unclear, such as whether there's an elevator and how Wi-Fi works in the rooms, so if these matter to you, it might be worth confirming directly with the inn before booking. As for Rakuten Mobile signal conditions, I wasn't able to get a definite reading this time, so please feel free to check the official tool yourself if needed.

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Related Links

• Official Site