Hakodate Area

I Looked Into Umi to Akari HUIT RESORT Hakodate Yunokawa

2026-09-02

I Looked Into Umi to Akari HUIT RESORT Hakodate Yunokawa

On this blog, I've been gradually researching and recording not just campsites, but also facilities that could work for those days when I think "let's skip camping and just relax at a hotel instead."

This time, I looked into Umi to Akari HUIT RESORT Hakodate Yunokawa, located at Hakodate Yunokawa Onsen. I came across some info saying you can drink local sake on the rooftop, which caught my interest, so I decided to look into it.

The Short Version

The biggest draws seem to be the open-air bath that blends into the sea and sky, and the rooftop "moon-viewing sake," where you can enjoy local sake while looking out over the Tsugaru Strait.
As for Rakuten Mobile signal conditions, the official tool didn't display any rating at all, so I'm treating this as "unknown."

I've summarized the details below.

What Is Umi to Akari HUIT RESORT Like?

Apparently it's a resort hotel located in the Yunokawa Onsen area of Hakodate, Hokkaido. It's about a 5-minute drive from Hakodate Airport, and if you're taking a bus from Hakodate Station or the airport, it looks like you get off at the "Nettai Shokubutsuen-mae" bus stop and walk about a minute — so even for someone like me who doesn't drive, it seemed like a relatively easy place to reach.

The official website didn't specify exact check-in/check-out times or a rough price range for staying there, and it looks like pricing is something you check through an external reservation system instead. Reservations can apparently be made online as well as by phone.

  • Open-air bath: Called something like the "Inishie no Mugen Kaito" open-air bath, its defining feature seems to be a view where the sea and sky blend together
  • Tatami bath: Apparently designed so your feet don't get cold even in winter
  • Private open-air bath: There seems to be a type that groups of friends can use together
  • Rooms: Apparently you can choose from six room types — Standard Double, Standard Twin, Superior Twin, Family Room, Junior Suite, and Universal Room
Komorin
Komorin

The idea of a tatami bath felt refreshing to me. Not having cold feet during winter in Hokkaido seems like a quietly important thing.

Rooftop "Moon-Viewing Sake" and Two Dining Options

What's introduced as an experience unique to this facility is the "moon-viewing sake," where you can enjoy local sake on the rooftop while looking out at the Tsugaru Strait and the lights. It's apparently priced at 1,200 yen (tax included) per go (about 180ml), which seemed like a nice way to spend a slightly special evening during a trip.

There seem to be two dining venues: Tsukifune on the 2nd floor, which offers a buffet style, and Unpa on the 1st floor, where you can enjoy Japanese kaiseki cuisine and sushi. It looks like Unpa requires separate reservations for lunch and dinner.

At check-in, in addition to a welcome drink, it seems guests also receive dango and amazake from the long-established shop Yakidango Gingetsu, in limited quantities. There also appears to be an original in-room outfit design called "Santanfuku," which gave me the impression that the concept is carefully thought out down to the smallest details.

By the way, Yunokawa Onsen apparently has a legend that in 1653, the 9th lord of the Matsumae clan, Takahiro, cured a serious illness using this hot spring, and the official website also introduces this origin story. Looking into it, I got the sense that this is a hot spring area with quite a long history.

As an Indoor Person, Many Facility Details Remain Unclear

I couldn't confirm whether there's a sauna or powder room, or the state of in-house Wi-Fi, since none of this was clearly stated on the official website. As for whether day-use bathing is available and its price, there was information about outside reservations for the Tsukifune restaurant, but nothing about outside use for bathing alone seemed to be mentioned.

I also couldn't determine wheelchair accessibility or whether pets are allowed, based on the official website. If you're considering staying, it's probably safer to confirm these points directly when making a reservation.

Rakuten Mobile Signal Conditions

When I checked this facility's location using the official "My Area Network Simulation" tool, no rating was displayed at all — instead it showed a message like "Currently under temporary maintenance." This might be because the tool doesn't have address data for this location, but I couldn't confirm the actual reason.

So this time, I'm recording it as "unknown," since I can't call it either good or bad. I can't force myself to write "good," and I can't just assume "bad" either, so I'm leaving it as is.

Komorin
Komorin

I think this is the first time I've seen a case where no rating comes up at all. There's not much I can do when all I get is a maintenance notice.

Wrapping Up

To sum up, my impression of Umi to Akari HUIT RESORT Hakodate Yunokawa is that the open-air bath blending into the sea and sky, along with the rooftop "moon-viewing sake" where you can enjoy local sake, are its biggest draws. Between the history of Yunokawa Onsen and thoughtful touches like the in-room outfit and welcome drink, it felt like a facility that really builds a sense of getting away from everyday life.

That said, a lot of practical information — like pricing, check-in times, and whether there's a sauna — couldn't be confirmed from the official website, so it seems you'll need to check with the external reservation system or by phone before booking. Since I also couldn't get a rating for Rakuten Mobile signal conditions this time, if that matters to you, it might be worth checking the official Rakuten Mobile tool yourself before setting off.

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