Lake Vouliagmeni is a unique natural lake located near the coastal suburb of Vouliagmeni in Athens, Greece. It is known for its warm, mineral-rich waters, which are heated by geothermal springs. The lake is surrounded by lush greenery and offers a serene environment for visitors. The lake has a maximum depth of about 40 meters and is home to various species of fish and aquatic life. It is a popular destination for swimming, relaxation, and wellness, attracting both locals and tourists. The area also features facilities such as sunbeds, cafes, and changing rooms for a comfortable experience.