Lahemaa National Park was established for the preservation, protection, restoration, exploration and promotion of nature, landscapes, cultural heritage and balanced environmental use of the coastal area of North Estonia. Here, forest, bog and coastal ecosystems, as well as semi-natural communities, geological monuments and historic and architectural monuments are protected. Lahemaa is one of Europe's most important forest protection areas and belongs to the European Natura 2000 network as Lahemaa's bird and wilderness area.
Lahemaa National Park was established on June 1, 1971. It is the oldest and also the largest national park in Estonia, with an area of 74,784 ha, of which land is 47,910 ha and the sea is 26,874 ha. The national ark is located on the shores of the Gulf of Finland in the Harju county in Kuusalu municipality and in the county of Haljala and Kadrina in the county of Lääne-Viru.