I Looked Into Hotto Futto 105

I've been continuing a series looking into facilities that seem accessible even without a car, mainly focusing on campgrounds and day-use hot springs. This time I decided to take a bit of a detour and cover a free foot bath spot instead.

I started looking into this place because the name "Hotto Futto 105" caught my attention, and it turns out the name comes from the source spring temperature of 105 degrees Celsius. Apparently it's also known as "Japan's longest flowing foot bath" at 105 meters long, so I figured this was definitely a place worth researching.

I looked into what kind of facility this "105-meter flowing foot bath" actually is

It's a foot bath facility located in Obama-cho, Unzen City, Nagasaki Prefecture, apparently operated by the Unzen Tourism Bureau (Obama Onsen Tourist Information Center). I couldn't find a dedicated official website, but the information seems to be presented on the official tourism site for the Shimabara Peninsula.

Operating hours are apparently 10:00 to 19:00 from April through October, and 10:00 to 18:00 from November through March, with no reservation required. Closures are listed as the third Wednesday of each month, January 4th and 5th, and days with bad weather or spring-cleaning maintenance, so it might be a good idea to check in advance if you're planning a visit.

• Origin of the name: apparently named after the 105-degree source spring temperature
• Size: 105 meters long, said to be Japan's longest flowing foot bath
• Types: multiple types are apparently available, including a seated foot bath, a walking foot bath, and even a pet foot bath
• View: the standout feature seems to be watching the sunset sink into Tachibana Bay while soaking
• Cost: using the foot bath is apparently free

The sight of spring water exceeding 100°C flowing down the terraced basins, along with the rising steam, is also apparently highlighted as a highlight, and it looked pretty impressive even just from photos.

Komorin

I was surprised there's even a pet version of a foot bath. If you can watch the sunset while soaking, I bet a lot of people go there just for the photo opportunity.

I also looked into the steaming kiln and access to the surrounding area

Right next to the foot bath there's apparently a steaming kiln where you can steam locally sourced vegetables and seafood yourself, self-service style. I wasn't able to confirm the details on usage fees or how to sign up, so if you're interested, it's probably best to check directly at the local information center.

As for accessibility without a car, it's apparently about a 3-minute walk from the "Nishitozanguchi" bus stop on the Shimatetsu bus line, and about a 7-minute walk from the "Obama" bus stop served by both Shimatetsu and prefectural buses, so it seems like a location that's easy to reach by bus. There's also apparently an Unzen City Obama Marine Park parking lot nearby, so driving is an option too.

• By bus: about a 3-minute walk from Nishitozanguchi bus stop, or about a 7-minute walk from Obama bus stop
• Parking: there's an Unzen City Obama Marine Park parking lot nearby, with regular cars costing around 250 yen
• Nearby lodging: it seems positioned so that you can look down on this foot bath from the rooftop private open-air bath "Fugen no Yu" at Tsutaya Ryokan

More detailed information also seems to be listed on the official Shimabara Peninsula tourism site, so it might be worth checking that out too.

Rakuten Mobile Signal Conditions

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

Given the location facing Tachibana Bay and the fact that it's an outdoor foot bath facility, connectivity might vary depending on exactly where you are. If you're planning to use data there, it's probably worth treating this rating as just a rough guide.

Komorin

A "C" rating is a little concerning, but honestly, you're probably not spending much time on your phone while soaking your feet anyway, so it might not end up mattering that much.

Wrapping Up

Putting it all together, Hotto Futto 105 struck me as a rare spot where you can enjoy a free 105-meter-long foot bath while watching the sunset sink into Tachibana Bay.

It seems reachable on foot from a bus stop, which is appealing if you don't have a car. That said, the Rakuten Mobile signal came back with a "C" rating, so if you're planning to use data while you're there, it might be worth checking in advance. If this concerns you, it's probably a good idea to enter the actual address into the official Rakuten Mobile tool and check for yourself.

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Related Links

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