Castell de Sant Joan commands a prominent position atop a 60-meter cliff separating Lloret de Mar's beaches, with documented origins tracing to 1041. The 10th–12th century fortification originally defended against pirate raids and invasions by Turkish, English, and French forces during the medieval period. Severely damaged by British bombardment during the Peninsular War, the castle was further devastated by an 1923 storm before comprehensive restoration (1960–1992) stabilized its iconic 18-meter-high circular tower and triangular outer wall encompassing 500 square meters. From the tower's summit, visitors enjoy exceptional Mediterranean vistas. Now integral to Lloret de Mar's Open Museum initiative, the castle stands as a testament to the region's strategic maritime heritage.