Digerhuvud is the name of Swedens largest area of limestone/sea stacks.
The sea stack area, which has a length of about 3.5 km and consists of several hundred stacks, stretching along the beach from ”Släthällar” in the southwest to Helgumannens fishing village in the northeast ..
During silurperioden ( 444-416 million years ago ), Sweden was quite close to the equator, which has resulted in the Silurian bedrock of Gotland are remains of several large reef. The bedrock of Gotland testify that the sediment (which later came to form the calcareous bedrock) were deposited in a shallow tropical sea. The towering sea stacks have been formed by erosion – wind, water , waves , gravitational movements and living organisms.