The smaller of Omiš's two cliff-top fortresses, Mirabella (also called Peovica) sits directly above the town and is the closer and more frequently visited. The climb from the old town takes about 15 minutes on a well-marked path. From the top, the view takes in the Cetina river mouth, the sea, and the coast in both directions — and makes the strategic logic of Omiš's medieval pirate history immediately clear.
The fortress walls are largely intact, and the interior is open for exploration. There are no exhibits, but none are needed — the ruins and the view are the point.