The Blanský Forest Nature Reserve was declared in 1990. It has an area of 212,35 km2. There are 15 natural preserves (Vyšenské kopce, Kleť, Dívčí Kámen, Kalamandra, Bořinka, Holubovské hadce, Jaronínská bučina, Vysoká Běta, Šimečkova stráň, Dobročovské hadce, Na stráži, Horní Luka, Mokřad u Borského rybníka, Malá skála, Ptačí stěna).

Artificial lake Olšina was probably founded in the beginning of 15th century and the first written mention is from 1458.

Lake Plešné is one of five glacial lakes on Czech side of Šumava. It has elliptical shape with length 540 m and width 150 m, area is 7,48 hectares and maximal depth 18,3 m. About 200 meters from the lake dike is situated 6 hectare stone sea with glacial origin.

The protected area is formed under wet woods and wet meadows in the forest complex. The reason protection is an extensive set of natural spruce and alder on springs along small watercourses and peat meadow communities with characteristic floristic composition.

The Protected Area lies on both sides of the Vltava River, on the steep rocky slopes of the river canyon valley.The steep rock full of large stones which is also called the stony see was created by the devil according to the legend. The visitors are attracted to make a romantic trip there but they should not climb up the stony sea.

The protected area consists of mixed forest on steep southwest slope of Mount shoemaker.

A lime tree in the community of Běleň not far away from Malšín has a very interesting fate. The lime tree is said to be the oldest lime tree in the South Bohemia. It was planted around the year 1200. In 1951 the lime tree / girth 12,5 metres / seemed to die after it had been thunderstruck. However, something very surprising happened. While the community of Běleň became extinct, the lime tree is still alive.

The protected area consists of mixed forest on the eastern slope debris high stone (865 m), 1.2 km southwest of the village Klení.