Braniborská jeskyně, Natural sandstone cave near Doksy and Chlum, Czech Republic.

Braniborská jeskyně is a sandstone rock overhang in the forests about 3 km west of Staré Splavy, on the territory of Chlum. It measures 44 m in length, about 12 m in depth and roughly 6 m in height, with an open face rather than inner chambers.

The cave served as shelter for local people during times of conflict in the region. Carved inscriptions from 1741 remain visible on the walls today.

The name Braniborská jeskyně, "Brandenburg Cave", recalls the Prussian troops whose incursions drove locals to hide here. A legend tells that the overhang arose from a fight between a shoemaker and the devil over payment for a new pair of boots. Today the overhang serves as a tramp bivouac.

A green-marked hiking trail from Staré Splavy leads to the cave in approximately one hour on foot. The path goes through rock formations, so sturdy shoes and careful footing are recommended.

The overhang is not a deep cave but a 44-metre-wide sandstone ledge, about 12 metres deep and 6 metres high. A heart-shaped shield carved into the rock bears the letter W of the Valdštejn family, topped with a crown and dated 1741; vandals have partly damaged it.