Kurokawa Onsen is known for its rotemburo (outdoor baths) but if you're ready for something a little bit different, try out the cave onsen of Ryokan Shinmeikan. Passageways carved out of the rock reach back far into the hill; the water in some spots can be as deep as one's waist. The steamy air makes for poor visibilty so caution is needed when moving around the onsen but this is an incredibly unique experience. There are three separate bathing areas, one for women only and two that are mixed gender.
- 1 min read
Cave Onsen of Shinmeikan
A steamy subterranean soak in Kurokawa Onsen

By Mandy Bartok
Community writer

The riverside pathway to Shinmeikan's cave onsen

The entrance to the women's bath looks just like a mine shaft

The cave extends fairly far back into the hill and there are several side tunnels

A small statue stands at the entrance to the baths

The entrance to Shinmeikan is across the bridge

A line of sandals on the bridge to Shinmeikan
Explore nearby
Information
Kurokawa Onsen, Minamiogunimachi, Aso-gun, Minamioguni-machi Kumamoto Prefecture 869-2400 (Directions)
Join the discussion

Anonymous
10 years ago
Interesting place for onsen!
It's very unique but you have to be careful, as it's not very well-lit!
2 comments in total
Book your trip
Find a nearby hotel
Explore some of the best nearby hotels and deals for the perfect place to stay in Japan.
Top Articles
-
1
The Ultimate Guide to Japanese Head Spas in Japan
Beauty & Spa -
2
Ultimate Japan Car Culture Journey - From Auto Salon 2026 to the Open Road
Chiba -
3
Miyoko Schinner: Japan Vegan Tour 2026
Food -
4
Yakiniku Inoue Ginza
Tokyo -
5
Winter Adventure in Akita, Japan
Akita - Sponsored -
6
Japan Pottery Tour: Hands-On Workshops & Artisan Encounters
Culture -
7
I’m Donut?: Japan’s Viral Donut Sensation
Culture -
8
Transit Guide: JR Kansai Area Pass
Transportation -
9
Japanese Etiquette: The Ultimate Guide
Culture -
10
Awaji Island: A Hidden Gem in the Seto Inland Sea
Hyogo - Sponsored
-
1
Guide to Bringing Medicines Into Japan
Planning -
2
September Grand Sumo Tournament (Tokyo)
Tokyo -
3
The Ultimate Guide to Thrifting in Tokyo
Shopping -
4
Your Name: Real-Life Locations in Tokyo
Tokyo -
5
Kishiwada Danjiri Matsuri
Osaka -
6
Yodogawa Fireworks Festival
Osaka -
7
Daikoku Car Meet
Kanagawa -
8
Ghibli 3D Sculpture Exhibition
Tokyo -
9
Japanese Urban Legends
Culture -
10
Iwatayama Monkey Park
Kyoto