On top of Pyhä-Nattanen there are impressive large rocks, tors, which are more than five meters high and look like the work of an artist, although they were sculpted by nature. These tors probably consist of the most durable parts of the granitic rock, where the weathering has been slower than in the surrounding rock. The tors were formed before the last glaciation, since post-glacial erosion has not been rapid enough for them to form. They remained intact under the ice-sheet, while the broken rock around them has been transported away. In former times, the extraordinarily shaped tors were sacred places of worship and they were also regarded as the dwellings of divine creatures. On the top of Pyhä-Nattanen there is an open wilderness hut for daytime use.