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Sarukuma Travel > Activities & Tips > Koyama Resort Hidden Hot Spring: A Tropical Mini-Getaway in Kumamoto’s Uki City — Bath So Soothing You’ll Want to Linger!

Koyama Resort Hidden Hot Spring: A Tropical Mini-Getaway in Kumamoto’s Uki City — Bath So Soothing You’ll Want to Linger!

Outing Spots

2021.02.04

📌 What you’ll learn in this article
Our SaruKuma writer visited “Koyama Resort Hidden Hot Spring” in Matsubase Town, Uki City, and reports back from her experience. Prices start from 550 yen. We’ve also rounded up family-friendly tips, access info, and opening hours.

Welcome to Koyama Resort Hidden Hot Spring

Hello there!
It’s Rikotama, writing for SaruKuma!

The sunshine is starting to feel a bit warmer these days, but rainy and cloudy days are still pretty chilly!
So today, I’m introducing the perfect remedy — a hot spring!

It’s tucked away in Matsubase Town, Uki City, Kumamoto Prefecture —
the [Koyama Resort Hidden Hot Spring]!!

From central Kumamoto City, drive along Route 266 toward the Jonan and Matsubase area, and you’ll spot this sign!

There’s plenty of parking!

There’s even a second parking lot!

[Koyama Resort] proudly offers 100% free-flowing natural hot spring water!

And there’s free Wi-Fi, too!

Here’s the entrance!
Tropical vibes everywhere you look!

Pay your fee at the reception desk!
Hours: 10:00–22:00 (last admission 21:00)

Step inside and you’re greeted by the gentle aroma of incense!
They sell all sorts of incense goods, too!

Ahhh, so soothing…

Just past reception, we spotted gachapon (capsule toy) machines!
Of course the kids couldn’t resist!
※In our case, we ended up buying a Gundam capsule toy…

Even the restrooms have a tropical feel!

From here, the path splits into the large public bath and the private family baths!

What Makes Koyama Resort Special

For our visit, the family treated ourselves to a private family bath!
On weekends, you get a 50-minute soak slot!

The changing room is equipped with a hairdryer!

Time to take the plunge!

Wow!

The morning sun streams in beautifully — what a lovely atmosphere!
There’s plenty of room for a family of three!

The ceiling is high, and the water feels wonderfully soft and silky.

We chose the family bath with semi-open-air garden, so we got a little garden area attached!
My husband and son had a blast going back and forth between the bath and the garden!

[Koyama Resort] opens at 10:00, and we arrived at 10:10 — but to our surprise, 8 of the 10 family bath rooms were already taken!

Since several different bath types are available, we strongly recommend arriving early on weekends!

Step inside and you’re whisked away to the tropics 🍍 — pure resort getaway vibes!

Come pay [Koyama Resort] a visit — you won’t regret it!

Koyama Resort Hidden Hot Spring at a Glance

Parking Available Western-style toilet Available
Vending machine Available Diaper-changing station None
Hand-washing area Available Suitable age From 0 years old
Pricing Public bath: Adults 550 yen / Ages 4–elementary school 350 yen

Family bath (semi-open-air): 2,200 yen

Special room: 3,850 yen per hour

 Reservation required? Not required
Typical length of stay About 1 hour Change of clothes needed? Towel and underwear required
Water play No Meals available? Restaurant on-site
Hazardous areas None Nursing area In the changing room

 

Koyama Resort Hidden Hot Spring — Venue Info

  • Address

    Matsubase Town, Uki City, Kumamoto Prefecture

  • Parking

    Available

  • None

    Tatami seating

  • None

    Private rooms

  • None

    Children’s tableware

  • None

    Children’s chair

  • None

    Diaper-changing table

  • None

    Stroller-friendly entry

Frequently Asked Questions

What’s a great family-friendly spot in Matsubase Town, Uki City?

Koyama Resort Hidden Hot Spring is welcoming to families with kids and a popular pick in Matsubase Town, Uki City. See this article for full details.

What are the hours and closing days for Koyama Resort Hidden Hot Spring?

The latest hours and closing days may change. Please check the official website or call ahead before visiting.

※Information is current as of the time of reporting. Prices and hours are subject to change. Please confirm before your visit.

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Article Writer

Sarukuma Editorial is a small team of locals based in Kumamoto, Japan, sharing the hidden gems, hometown flavors, and seasonal experiences that make our region special. We write the kind of guide we wish we had when showing friends around — honest, practical, and made by people who actually live here.

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