Perusinsuliinien
Perusinsuliinien, also known as the Main Islands, are a group of islands in the Baltic Sea, located off the coast of Estonia. They are part of the larger archipelago of the Estonian islands and are known for their rich biodiversity and historical significance. The Main Islands consist of five main islands: Hiiumaa, Saaremaa, Muhu, Vormsi, and Ruhnu. Each of these islands has its own unique characteristics, including diverse landscapes, traditional architecture, and cultural heritage.
Hiiumaa, the largest of the Main Islands, is known for its rugged coastline and extensive sand dunes.
The Main Islands have a long history of human settlement, with evidence of human activity dating back