Lake Vouliagmeni is one of the most impressive natural sights of Athens. Its depth or connection to the sea have not been discovered yet. The characteristics of the lake combined with the unique surroundings make it a significant monument. It is has been declared a natural monument and a protected wetland. It is included in the network «NATURA 2000» and is protected by the International Convention «RAMSAR». You can swim in the lake from 07.00 until 20.00 daily.
