It is an oval shaped castle where the narrowest diameter is about. The ruins out of the castle spread out to ancient Arsinoe. In the southern slopes of the hill there are graves. The portal is on the west rampart. In the castle there are ruins of a palace, a bath, several cisterns and a mosque.
According to a popular belief, there is an underground connection between Softa Castle and Mamure Castle to the west, which so far is not proven. The distance between the two castles is about. Another belief is that the castle is protected by snakes.