The capital of Ainis, Hypata (Ὑπάτα), was located at the modern town of Ypati on the northern slope of Mount Oeta; the name is probably derived from a corruption of hypo Oita (, meaning near the Mount Oeta). The ancient city was probably divided in a lower fortified city located approximately at the modern location of the town, and an acropolis which is still visible further up the mountain. Apart from some fortifications and inscriptions, very little of the ancient town is visible today; travelers in the early 20th century noted ancient blocks and slabs built into the modern houses, but most of these were probably destroyed when the German Wehrmacht demolished most of the town during the Second World War. The commanding tower on the acropolis is of a later date, built by the Genoese in the Middle Ages. The political area of Hypata probably extended far north on the river plain, which is also mentioned in several inscriptions. A road over Mount Oeta led southward from Hypata towards Kallion in Aetolia.