The ancient city of Oiniades is built on the north bank of the Acheloos river 4 km west of the current village of Katochi. It was the second largest and most important city of Akarnania after the city of Stratos. The ancient theater of Oiniades is considered one of the most imposing monuments of the ancient city. It was built on the slope of the hill in the north side and at a very short distance from the area of agora. From the concave (koilon) one can see the surrounding plain but also the coasts and islands of the Ionian Sea. It had a capacity of 4,600 seats and very good acoustics.