Al Bithnah Fort is the second-largest fort in Fujairah. It is located in Al Bithnah village, approximately 13 km west of Fujairah city, between the mountain ranges of Wadi Ham, overlooking green oases. The fort dates back to 1735 CE.

The fort consists of a main conical-shaped building with three floors, in addition to a smaller tower to the north. Visitors enter through a gateway less than one metre high, which leads into a spacious courtyard locally known as the Sahn Al Qal‘a (fort courtyard). The courtyard also forms the base of the fort. Eight openings arranged in a circular pattern at the top cover all directions, serving as strategic positions for warriors’ cannons and rifles and enabling them to observe the surrounding area. The fort’s considerable height, reaching approximately 20 metres above ground level, further enhanced its defensive capabilities.

According to local accounts, the fort contained a well that was accessed by a staircase, as well as a storeroom used to store food supplies when needed. The fort fell into ruin during the early years of the rule of the late Mohammed bin Hamad Al Sharqi. It was subsequently rebuilt using mud and gravel, particularly its two main towers. Further restoration work was carried out in the early 1970s. Built from sun-dried and fired clay blocks, the fort remains structurally intact to this day. Restoration was completed in September 2012, along with the construction of a surrounding wall.