Porto Palermo Castle sits within the scenic bay of Porto Palermo, a few kilometers south of Himarë along the Albanian Riviera, connected to the mainland by a narrow strip of land. Though traditionally attributed to Ali Pasha of Tepelenë in the early 19th century, the fortress most likely originated with Venetian builders, featuring the characteristic triangular plan with round bastions at three corners. Visitors can access the well-preserved three-sided fortress for a modest fee and explore its interior garrison quarters and northeast bastion prison, while the nearby abandoned submarine tunnel from the 1960s-1980s Communist era adds another layer of intrigue to this dual-history coastal landmark.