Lake Kerkini National Park is a wildlife haven, home to more than 300 rare and protected species of birds and animals. The manmade lake, formed in the early 1930s when the Strymonas River was dammed, is nestled in a beautiful natural landscape of forest, willows and water lillies and forms an ideal habitat for many varieties of cormorants, herons, coots, terns, falcons, eagles and more.