Archaeological site Wolf Cave in Kristinestad

You're standing at Susiluola, the Wolf Cave. In Swedish it's called Varggrottan. It sits in the Pyhävuori hill, right on the border between Kristinestad and Karijoki. Have a look at the rock in front of you. There's a crack, and its upper part forms a cave. Until fairly recently it was completely packed with soil. Doesn't look like much, does it? Yet this could be one of the most exciting spots in the Nordic countries.