At Digerhuvud you will find Sweden’s largest contiguous seastack area.
The seastack area, which has a length of about 3.5 km and consists of several hundred seastacks, stretches along the beach from Släthällar in the southwest to Helgumannen’s fishing village in the northeast.
During the Silurian period (444 – 416 million years ago) Sweden was quite close to the equator, which has resulted in the Silurian bedrock on Gotland being the remains of several large reefs. The bedrock on Gotland testifies that the sediments (which then came to form the calcareous bedrock) were deposited in a shallow tropical sea.
The mighty seastacks have been formed by erosion – wind, water, waves, gravitational movements and living organisms. The seastacks varies in height from a few meters up to 8 meters. The outermost seastacks stand a bit out in the water and are still being processed by the waves of the sea. Inside the seastack field runs a low rock wall, and inside this spreads a cobblestone field up to 200 meters wide which has almost no vegetation. Even further in, a low-growing forest of windswept beach pines takes over.
The people of Fårö call the place Bjerget – dialectally for the mountain – but which for some unfathomable reason was named the Digerhuvud Nature Reserve. Outside Bjerget, the sea is deep all the way to the beach and here they had a very significant cod and herring fishery. At Bjerget itself it was difficult to get ashore, but at each end of this seastack area there was a large fishing village where the boats could be pulled up and where small sheds were built for storage of gear and for temporary overnight stays – Lauters (Jauvika) and Helgumannen.