The vast lagoon that extends northeast of the city of Argostoli is known as Koutavos or as Argostoli lagoon. The stone De Bosset bridge borders Koutavos lagoon which is quite shallow in depth not exceeding two meters. It is home to various species of birds and fish and the famous Caretta carettas swim in the lagoon during mating season.
It was named after the ancient word “kottavos” which stands for bowl. It is a very shallow bay, only for small boats, which used to be swampy and impassable, full of mosquitoes carrying lots of diseases and infections.
Since the construction of the bridge in 1813, the Koutavos lagoon has improved and is one of the most visited sights in Kefalonia, where tourists can stroll around admiring nature.