Arad Fort was built in the15th-century and is located merely 11.6 km from the Grand Swiss-Belhotel Waterfront Seef, Bahrain. Formerly guarding a separate island of its own, the fort and its surroundings have since been joined to Muharraq Island. This fort has a beautiful history. In its present location, it overlooks various sea passages of Muharraq's shallow seashores. In the past, there was an inaccessible marine channel which was controlled by the local people to prevent ships from breaking through to the island where the fort is located. The fort is square and on every corner there is a cylindrical tower. It is surrounded by a small trench which used to be filled with water from wells that were drilled especially for this purpose. In every corner of the upper wall of the fort there are nose shaped openings for marksmen.