Scientific research and studies have discovered that millions of years ago, where the lake is now, there was once a large cafe with a large number of hot springs. Eventually the high temerature and moisture of these springs caused the roof to collapse. The lake is excellent for swimming for therapy as well as for pleasure and there is equipment for helping those who find it difficult or impossible to get into the water on their own. During the summer Lake Vouliagmeni offers hotspring baths, hydrotherapy and physiotherapy. English is spoken as are a number of other languages.
Children are welcome.
The Lake is across the street from the very popular Vouliagmeni beach, one of the best in the vicinity of Athens. There are many hotels in the area including the very nice Armonia Hotel on the beach. There are also plenty of cafes, bars, tavernas and restaurants nearby. From Athens the lake is about a half hour drive. The lake is open year round.