Sunday, August 9, 2020
Hyypiänmäki massive roof cave
That cave is reported in the Suomen Luolat book, a book of Finnish caves. But on site, I made measurements and it turns out the cave is even longer, maybe 75 meters.
I also drew a map, here.
There's two small side caves (coordinates N 60.409705 E 24.708373 and N 60.409540 E 24.708555), and then the main cave is at coordinates N 60.409106 E 24.709333.
Note: your parking will be VERY difficult. It seems like the whole area is on purpose closed for any possible places for cars to be left in. That's a practice that I find somewhat disturbing. The nature is not just for the locals.