Castell de Sant Joan is an iconic 13th-century fortress perched on a rocky promontory overlooking the Mediterranean coast in Blanes, Catalonia. This strategic watchtower once stood sentinel against corsairs and pirates that traversed these waters, commanding sweeping views of both seascape and surrounding landscape. Today the castle remains a prominent landmark dominating the city's skyline, accessible year-round with extended summer hours. The elevated position and well-preserved structure make it an essential vantage point for experiencing Blanes' coastal heritage and maritime history.