Tsivlou lake is near Akrata at a height of 800 meters. It is one of the very few lakes in the mountainous Peloponnese and was formed by a landslide in 1912 which blocked the Krathi river valley.It covers an area of 200 acres and a maximum depth of 80 meters. It is the most noteworthy wetland area of the district and has a path which allows one to walk all the way around it or to simply picnic there in good weather. There are many picturesque nearby villages to be visited. It is some 50 minutes drive (30 km.) from Hotel Theasi.