Initially, a large part of the Ropa Valley was a freshwater lake, which was known as Agios Georgios Lake. The lake naturally overflowed to the sea through Ermones Valley. It was partially drained before 1720 by Conte Nikolaos Theotokis. In 1903, with money from the Zambelis legacy, new, more effective drainage works were carried out. The main drainage canal is Ropa River. Today it is a huge meadow or more properly a wet meadow, with a large part of it being flooded for several months. Thus it combines the biodiversity of meadow ecosystems with that of wetlands. In the deepest part of the former lake is the golf course, in which there are small ponds. Also in the southwestern part we find Lamboviti hill, where the Theotoki estate is located, with dense vegetation and several centuries old trees, including some impressive Pubescent Oaks. The main meadow is covered with herbaceous vegetation, but there are also various trees and shrubs, such as Narrow-leaved Ashes, Field Elms, Almond-leaved Pears, Chaste Trees, White Willows etc. In the golf course and in Lamboviti there are other species, several of which planted by man, such as Black Poplars, eucalyptus tree species and others. All the amphibians of Corfu have been recorded here.