Vonitsa is a coastal town, built on the south side of the Amvrakikos gulf at an altitude of 10 meters and the main city of Aktio-Vonitsa municipality.

One of the most important sights of Vonitsa is the Venetian castle, which is one of the best preserved in Greece. It was built at the beginning of the 11th century (around 1070) by the Venetians, when the emperors of Byzantium were the Komnenians who granted them the privilege to build the fortress and to exploit the port commercially. In the area there are also several old temples (of Panagia near the port, the metropolitan of Agios Spyridon and Agios Nikolaos).

The traveler should do not miss a walk on the beautiful island of Koukoumitsa. Koukoumitsa is the picturesque verdant island that is connected by a newly built stone footbridge to the opposite land and is an ideal choice for a refreshing afternoon walk. Among the green pines, small and humble is "hidden" the church of Agios Nektarios, to which the faithful used to arrive on foot, crossing the waters.