Al-Sira Castle is located on a large rock in the seashore on the coast of the city of Quriyat, surrounded by water from all directions, and can only be seen from a distance, and it is believed that its history dates back to the Portuguese period, and it was used in the past as a watchtower due to its location on the coast of the state overlooking the Gulf of Oman It has also played an important commercial and navigational role over time. Today, Al-Sira Castle is an important historical and heritage landmark for the city of Qurayyat, and a distinctive tourist attraction that embodies the beauty of Omani architecture and fine engineering.