There is a glacial erratic along the trail. In the past, people had trouble understanding how a rock had ended up in a place like this so they thought that giants or goblins had hurled it here.
The modern ”boring” explanation is that during the ice age the ice sheet transported even large boulders far from their parent rock. Erratics have often been covered by soil over the course of time, but in high places the rocks are still visible.
This Kakslammi erratic is rather small. The largest known erratic in Finland is Kukkarokivi in Ruissalo, Turku. It is 40 meters long, 30 meters wide and 12 meters high.
The picture represents an artist’s interpretation of a goblin.