Kaiafas lake is situated in Ilia, in southwestern Greece, between the Lapithas Mountains and the Ionian Sea. It is believed that it was formed around the 6th century AD, after an extensive earthquake. It covers an area of about 400 acres, is 3 kilometers long, 500-600 meters wide and its maximum depth is approximately 2 meters. It hosts a rowing and water-skiing center and water sport events are occasionally organized in its waters. A pine-covered strip of land, known as Strofilia, separates the lake from the sea. The small islet of Agia Aikaterini (Saint Catherine) lies in the middle and is connected with a small strip of land with the shore. The islet is named after the small chapel that is built on it. On the shore of the lake are located the famous natural thermal springs and spas of Kaifas.
Kaifas lake is the second most important wetland in the area after that of the Kotychi-Strofilia National Park and has been listed in the Natura 2000 network. Unfortunately, the ecosystem has suffered major damage due to pollution and illegal poaching and logging. The fauna includes water snakes, Mediterranean turtles, eels, fish and several emigrating species of birds. The shores of the lake are covered with reeds.
Lake Kaiafas is one of the most naturally beautiful areas in all of Ilia. This unique setting, along with the spa attracts many people throughout the year, and are one of the highlights of the entire region.