Potkop Duba is a military bunker located in the Municipality of Slivno, within Croatia's Dubrovnik-Neretva County. Situated near the scenic viewpoint Deja Duba Raba and close to the peak Šibenik, this bunker forms part of the region's extensive network of Cold War-era fortifications. The area around Potkop Duba is characterized by its rugged coastal terrain and strategic position along the Adriatic coast, which has historically made it a focal point for military defense infrastructure.
While specific details about this particular bunker's construction and purpose remain limited, it reflects the broader pattern of Yugoslav military installations that were established throughout Croatia during the Cold War period.