The Sidon Sea Castle is a historic fortress built by the Crusaders in the thirteenth century, situated on a small island connected to the mainland by a causeway in the Mediterranean Sea off the coast of Sidon, Lebanon. This imposing structure served as a fortress of the holy land during the Crusades. The castle's remains are a testament to Sidon's strategic importance through history, functioning both as a military stronghold and a residence for European aristocrats during the Crusades. The site of the castle offers breathtaking views of the sea and is a popular attraction for tourists looking to explore the rich history of the region. The architecture of the castle is characterized by its massive stone blocks and the remnants of its fortified walls and towers that have been battered by both time and conflict. Despite centuries of erosion and damage, the Sea Castle remains a prominent symbol of Sidon's history, illustrating the cultural and military interactions between the Crusaders and the local inhabitants of the region at the time.