Hostibejk, Natural monument in Kralupy nad Vltavou, Czech Republic

Hostibejk is a protected natural monument in Kralupy nad Vltavou, declared in 2002. Its summit is formed of Upper Carboniferous Nýřany arkoses of the Kladno Formation, overlain by younger Upper Cretaceous sandstones of the Peruc-Korycany Formation; shells of prehistoric marine fauna remain in the rock. A green-marked trail leads up from the town.

A concrete anti-aircraft listening post was built on the summit in 1938 to protect the nearby refinery. After the Protectorate was established, artillery and machine-gun positions were added, but the equipment was removed in 1941; the Germans built two brick bunkers for ammunition. On 7 May 1945 youths fired at a retreating German column, and a motorcycle detachment killed six people hiding in an abandoned bunker; a memorial with their names stands at its entrance.

The lookout gazebo on the summit was built in the 1920s at his own expense by the Kralupy architect Anton Karban; from it the whole town of Kralupy nad Vltavou can be seen. A green-marked hiking trail leads up from the town, and the Hostibejk educational trail runs along the southern edge of the hill to the gazebo above the railway line.

A green-marked hiking trail leads from Kralupy nad Vltavou to the Hostibejk hill, about 1 km from the railway station on the Prague–Děčín line. The Hostibejk educational trail runs along the southern edge of the hill to the viewing gazebo above the railway track.

On 7 May 1945, youths fired from the hill at a retreating German column; the reply killed six people hiding in an abandoned bunker. A memorial with their names stands at the bunker entrance.