The Missolonghi Lagoon is a shallow lagoon located in the south of Aetolia-Acarnania, Western Greece. It is connected with the Gulf of Patras, a bay of the Ionian Sea. It has a triangular shape and its width varies between approximately 15 to 20 km.
Its maximum depth is 5 to 6 metres although mainly it is less than half a metre deep. Several islands surround the lagoon. Near the coast, the depth is only 10 cm and it is a swampy area. Fish and seaweed live in the lagoon. Strabo called the lake Kynia.
Aitoliko Lagoon is located to the north of the lagoon. Together they form the Missolonghi–Aitoliko Lagoons complex.
Wikipedia https://en.wikipedia.org/wiki/Missolonghi_Lagoon
Coordinates 38°20'59.15" N 21°19'46.267" E