Looking Into Hakkai Konohanakan

I've been slowly researching campsites, day-trip hot springs, and inns, along with their Rakuten Mobile signal conditions. This time I took a little detour and picked an inn as a candidate for those days when I think, “Let's skip camping today and do a hotel staycation instead.”

The place I looked into is “Hakkai Konohanakan,” near Oshino Hakkai. I learned that every room has a semi-open-air private bath and a private garden, and as an indoor type, I was curious about it as an inn where I could spend my time without leaving the room much.

The Short Version

All 5 rooms have a semi-open-air private bath and a private garden, and apparently meals are served in the room, so my impression was that this is an inn for people who want to hole up in their room.
As for Rakuten Mobile signal, the official tool gave a rating of “C.” If you plan to use the internet during your stay, it might be a good idea to prepare ahead of time.

I've put the details below.

What Kind of Place Is Hakkai Konohanakan?

It's an inn in Oshino Village, Minamitsuru District, Yamanashi Prefecture, and the official website describes it as “every room has a private open-air bath.” Each room is positioned as a fully private standalone building, and it looks like the layout makes it hard to run into other guests.

Here's the basic information, as far as I could confirm on the official website.

Number of rooms: 5 in total (3 in the main building, 2 in the annex)
Annex: The website says it opened in August 2025
Stay conditions: Apparently children under 10 can't stay
Accessibility: All bedrooms are on the second floor and there are stairs, so it seems guests who use wheelchairs or have difficulty walking on their own can't use the inn
Reservations: It looks like you book through the reservation page on the official website (an external booking system)
Price: I couldn't find any prices on the official website, only a lowest-price-guarantee banner saying that booking on the official site is the cheapest
Check-in and check-out times: I couldn't confirm them on the official website

The official website is here. For details like prices and times, it seems best to check the official website before booking.

Komorin

Every room has a hot spring and a garden, and apparently you can use the bath 24 hours a day. For someone like me who wants to get through a stay without seeing anyone, these conditions are really appealing.

A Look at the 5 Rooms Named After Mount Fuji

It seems the rooms are split into 3 in the main building and 2 in the annex. Every room has “Fuji” in its name.

Benifuji (main building): Up to 5 guests, with 36.1 m² on the first floor and 40.5 m² on the second floor. It has a semi-open-air bath and a dining area, and the second floor has a bedroom and a tatami living room. The website says it comes with a garden that borrows the scenery of the trees on the mountain side.
Yukifuji (main building): Up to 4 guests. Apparently the first floor has a semi-open-air bath overlooking the private garden and a Japanese-style dining area, and the second floor has a tatami living room.
Ogonfuji (main building): Up to 4 guests. The website says that from the tatami living room on the second floor, you can see Mount Fuji straight ahead while sitting down.
Tsukimifuji (annex): The room is 84.47 m² and fits up to 4 guests.
Kongofuji (annex): The room is 81.05 m² and fits up to 4 guests.

The 2 annex rooms are over 80 m², so my impression was that you could really stretch out and relax. On the other hand, it looks like some main building rooms have the bedroom on the second floor and the semi-open-air bath and other facilities on the first floor. It sounds like there are stairs even inside the room, so that's something I'd want to keep in mind.

In-Room Creative Kaiseki Meals

Apparently meals are served in the room for every room type, and you can eat at the dining area without leaving your room. Being able to eat without worrying much about changing clothes or getting ready is a setup I felt an indoor type would really appreciate.

Dinner: Creative kaiseki cuisine, with a menu that changes monthly. The website says it uses things like branded Yamanashi meat and seafood.
Breakfast: An original breakfast using rice cooked in a pot, Oshino tofu, Oshino Momiji eggs, and more.
Local ingredients: It seems they also use ingredients like “Fuji no Suke,” Yamanashi Prefecture's original salmon.

I couldn't confirm meal serving times on the official website.

Access and Nearby Spots

The access section on the official website lists travel times by car.

Yamanakako IC: 3 minutes by car
Yamanakako Hana no Miyako Park: 3 minutes by car
Oshino Hakkai: 3 minutes by car
Lake Kawaguchi: 20 minutes by car
Gotemba Premium Outlets: 20 minutes by car

It looks like an easy location to get around if you have a car. However, I couldn't confirm how to get there by train or bus, the nearest station or bus stop, or whether there's a shuttle, from the text on the official website. The access map seems to have been an image. As someone who has a license but doesn't normally drive, this was a little worrying. I also couldn't find the number of parking spaces, parking fees, or whether pets are allowed, so if you're curious, it seems best to ask the inn before booking.

Rakuten Mobile Signal Conditions

I entered this facility's location (Oshino Village) into the official “my Area Connection Simulation” to check. The overall rating came out as “C.”

If you plan to watch videos or work during your stay, it might be a good idea to prepare ahead of time, for example by downloading the data you need beforehand. I couldn't confirm the Wi-Fi situation at the inn on the official website, so if you're concerned, it seems best to ask the inn before booking.

If you're curious about signal conditions, please try the official Rakuten Mobile connection simulation yourself as well.

Komorin

It's a little disappointing that the signal seems weak. Still, with a hot spring, a garden, and meals served in the room, maybe spending the time away from the internet wouldn't be so bad.

See Rakuten Mobile Details

Wrapping Up

To sum it up again, my impression of Hakkai Konohanakan was that it's an inn where all 5 rooms have a semi-open-air private bath and a private garden, meals are served in the room, and it looks easy to relax inside your room.

There were also a few points I'd want to check beforehand.

Apparently children under 10 can't stay.
Because the bedrooms are on the second floor, it seems people who have trouble with stairs can't use the inn.
I couldn't confirm prices, check-in and check-out times, parking, or public transportation access on the official website.
For Rakuten Mobile signal, the official tool gave a rating of “C.”

This is an inn I'm glad I looked into, as a candidate for a day when I change my camping plans and want to relax in Oshino. If you're interested, please check the official website and the official Rakuten Mobile tool for the latest information.

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