I Looked Into Hinohara Onsen Center Kazuma no Yu

This blog keeps digging into places you can reach without a car—not just campsites, but also day-use hot springs and lodges. This time, I'm taking a bit of a detour from my usual "campsite" category to look into a day-use hot spring facility.

What got me interested was the phrase "the only village in Tokyo." Something about a place within Tokyo being called a village caught my attention, so I decided to look into Hinohara Onsen Center Kazuma no Yu, located in Hinohara Village.

The Short Version

It looks like this is a day-use bathing facility with alkaline simple hot spring water in the only village in Tokyo, complete with an outdoor bath, a sauna, and even relaxation services.
That said, the actual measured Rakuten Mobile signal came out as a C rating, which isn't great.

I've summed up the details below.

What Kind of Place Is Kazuma no Yu?

Hinohara Onsen Center Kazuma no Yu is apparently a day-use hot spring facility located in the Kazuma area of Hinohara Village, in the western part of Tokyo. The water is said to be an alkaline simple hot spring, and the place seems to sometimes get described as a kind of "hidden hot spring within Tokyo."

The facility's overall opening hours are apparently 10:00 AM to 7:00 PM, with last admission one hour before closing. The restaurant runs from 11:00 AM with last orders at 6:00 PM, and the relaxation services operate from noon to 5:00 PM. It seems opening days are limited to Tuesday, Wednesday, Saturday, and Sunday from April through December, and Wednesday, Saturday, and Sunday from January through March. The regular closing day is Monday, but if Monday falls on a public holiday, it stays open and closes instead on the following Tuesday.

The rates are apparently as follows.

Adults (junior high school age and up): 1,100 yen
Elementary school students: 600 yen
Preschool children: free
Discount for people with disabilities: 700 yen for adults, 350 yen for elementary school students (a disability certificate is apparently required)
Amenities: face towels for 300 yen and bath towels for 700 yen are apparently sold at the front desk

I couldn't find anything on the official website clearly stating whether advance reservations are required for day-use bathing. So my guess is that dropping in on the day itself is the basic way people use it. If you're not sure, it looks like you can also call to check, so confirming in advance might be a good idea for peace of mind.

Komorin

I'd heard the phrase "the only village in Tokyo" before, but I had no idea there was a hot spring facility there. Even as an indoor type, I feel like I'd want to stop by a place like this on a whim.

Checking Out the Baths, Sauna, and Relaxation Services

On the bathing side, it looks like there's a full lineup—a bubble bath, a jacuzzi, an outdoor bath (including a lukewarm option), and a sauna—giving the impression that it's set up so you can relax comfortably even on a day trip. There's also apparently a restaurant and a shop selling Hinohara souvenirs, so it seems like you could handle both meals and rest breaks without leaving the building.

The relaxation section apparently offers foot pressure therapy and foot sole massages, but since these also seem to run on limited days, it's probably worth checking the schedule in advance if you want to use them. There's also mention of an optional river play area, so if you visit in summer, the place might be set up so you can enjoy that alongside the hot spring.

Getting There Without a Car Takes a Bit of Time

According to the official website, there's a route where you take the Nishi Tokyo Bus bound for Kazuma from JR Musashi-Itsukaichi Station and get off at the Onsen Center bus stop. It apparently takes about an hour and costs 1,120 yen. As someone who doesn't drive myself, I appreciate having a route like this, but it's worth planning for a full hour each way.

I also found a rough estimate from a local taxi company suggesting that a chartered ride from Musashi-Itsukaichi Station runs around 6,220 yen per hour. It seems you can also discuss sightseeing plans for the surrounding area with them, so this could be worth considering if the bus schedule doesn't line up well. For those driving, it's apparently about 55 minutes from the Akiruno interchange on the Ken-O Expressway, or about 50 minutes from the Uenohara interchange on the Chuo Expressway.

Rakuten Mobile Signal Conditions

When I checked this facility's location using the official "My Area Network Simulation" tool, the overall rating came out as a C.

Maybe because of its location in a mountain village, it seems like a good idea to check signal conditions ahead of time. If you're a Rakuten Mobile user planning to visit, checking the connectivity beforehand might give you some peace of mind.

Komorin

A C rating is a bit concerning. Since I'm a Rakuten Mobile user myself, if I actually went there, I think it might be best to not expect any signal and just treat it as time to disconnect and soak in the hot spring instead.

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Wrapping Up

To sum it up, Hinohara Onsen Center Kazuma no Yu gave me the impression of being a day-use bathing facility with alkaline simple hot spring water in the only village in Tokyo, complete with an outdoor bath, a sauna, and relaxation services. If you're not driving, the bus route apparently takes about an hour each way, so it seems best to plan your visit with plenty of time to spare.

The Rakuten Mobile signal came out as a C rating, so if connectivity is a concern for you, it seems worth checking with the official Rakuten Mobile tool beforehand.

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