Estonia lies on the eastern shores of the Baltic Sea immediately across the Gulf of Finland, on the level northwestern part of the rising East European platform between 57.3° and 59.5° N and 21.5° and 28.1° E. Average elevation reaches only 50 metres (164 ft) and the country’s highest point is the Suur Munamägi in the southeast at 318 metres (1,043 ft). There is 3,794 kilometres (2,357 mi) of coastline marked by numerous bays, straits, and inlets. Estonia’s number of islands and islets in the Baltic Sea is estimated at some 2,222, and the country has 2,355 including those in lakes. Two of them are large enough to constitute separate counties: Saaremaa and Hiiumaa. A small, recent cluster of meteorite craters, the largest of which is called Kaali is found on Saaremaa, Estonia.
Estonia has over 1,400 lakes. Most are very small, with the largest, Lake Peipus, being 3,555 km2 (1,373 sq mi). There are many rivers in the country. The longest of them are Võhandu (162 km or 101 mi), Pärnu (144 km or 89 mi), and Põltsamaa (135 km or 84 mi). Estonia has numerous fens and bogs. Forest land covers 50% of Estonia. The most common tree species are pine, spruce and birch.
Phytogeographically, Estonia is shared between the Central European and Eastern European provinces of the Circumboreal Region within the Boreal Kingdom. According to the WWF, the territory of Estonia belongs to the ecoregion of Sarmatic mixed forests.