Chamber mountain cave (Kammiovuoren Luola)

On the same ski trip to Himos (article, alt. link), I also stopped near Kuhmoinen to look at the Kammiovuori caves (Kammiovuori is Chamber Mountain). I was unable to find anything from the Internet about this, but the book about Finnish caves lists it, so I went to see it. It was a bit sketchy road to drive, but I managed to get to a close-by location. And found the cave, worth a visit!

I parked the car roughly at these coordinates: N 61.6382 E 25.3557, there's a small extension to turn the car around and put it by the road. But the road is just a forestry road, no one drives it, there's plenty of rocks, can be fallen trees on the road, etc. From this spot there's a very thick forest to go through but once you get to the cleared/logged area you can walk much easier. 

The cave is at the bottom of the small canyon, or maybe it is a valley between two hills. Looks like this:

There's also a small lake to the left of the canyon:

There's the main cave but also a few small other holes:

• Kammiovuoren pikkukolo (small hole, a bit over a meter maybe). Coordinates N 61.638504 E 25.359516.
• Kammiovuoren pikkuhalkema (small crack, maybe 5 meters). Coordinates N 61.638477 E 25.359720.
• Kammiovuoren luola (the actual cave, length according to my 3D model is X meters). Coordinates N 61.638320 E 25.359638. The 3D model can be downloaded here, the map here, and the model can be rotated on your browser screen here.

Main cave photos (also the one at the top of the article):

Small crack:

Small hole:

This article has also been published at Planetcaver.net here. Read the full Planetskier series at planetskier.net, urban exploration stories from theurbanexplorer.net, and other underground stories from planetcaver.net, or all blog articles from Blogspot. Photos and text (c) 2026 by Jari Arkko. All rights reserved.