From the mountain rim above Draža’s garden, Boka was overseen by a fortress popularly called St. Andrew, but in Austro-Hungarian documents known as Vranovo Hill. Although it is quite ruined, it still has a heavy iron entrance door, which is rarely found on other fortresses. The soldiers who stayed here had the task of vigilantly monitoring the movements on the roads from the direction of Njeguši and on the Montenegrin border, keeping the cannons in the readiness state. Today, only two semicircular artillery platforms remained. Inside the fortress, a cistern has been preserved and a well can be found in front of the fortress. The fortress used to be surrounded by thick barbed wire, creating an obstacle for infantry during a possible attack.