Top 8 Lakes in Attica
Best lakes in Attica offer diverse natural landscapes, from hills and mountains to serene waters. This region provides numerous opportunities for outdoor recreation and peaceful escapes. Key lakes such as Vouliagmeni, Marathon, and Beletsi are prominent features, each offering unique characteristics. Visitors can explore a variety of aquatic environments, from natural thermal springs to artificial reservoirs.
Best lakes in Attica
- The most popular lakes is Vouliagméni Lake 🏊, a natural lake known for its thermal springs and brackish water. This unique lake maintains consistently warm temperatures and is rich in beneficial minerals.
- Another must-see spot is Marathon Lake and Dam, an artificial reservoir created by the construction of the Marathon Dam. It features an architecturally significant dam clad in Pentelikon marble and offers panoramic views.
- Visitors also love Lake Beletsi, a small artificial lake recognized as an important wetland. It supports a diverse ecosystem, including migratory birds and various fish species, making it a natural oasis.
- Attica is known for natural thermal lakes, artificial reservoirs, and important wetlands. The region offers a variety of lakes to see and explore, catering to different interests.
- The lakes in Attica are appreciated by the komoot community, with more than 40 upvotes and 14 photos shared across 8 highlights.
Last updated: April 29, 2026
Vouliagméni Lake 🏊
Highlight • Lake
Millions of years ago, the lake was located inside a huge cave and was fed by numerous hot springs and seawater. Following an earthquake in the area, the roof of the cave collapsed, leaving the lake as it is today.
The lake covers an area of two hectares and the water level is 50cm higher than the local sea level. The lake is thought to be 50-100 meters deep and because it is still fed by hot springs and seawater, there is a distinct current that can be felt in the water.
On the far side of the lake there is a rocky cliff face with a cave entrance which leads in to an extensive cave system with 14 tunnels covering 3,123 metres. So far, explorations have not found the furthest point of the rocky labyrinth.
One of the tunnels is 800 meters in length – making it the longest of its kind in the world. This tunnel has a huge stalagmite which has raised questions amongst geologists about the formation of cave and the whole Mediterranean area.
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Marathon Lake and Dam
Highlight • Lake
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Turtle Pond in the National Garden
Highlight • Lake
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Marathon Dam
Highlight • Monument
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Sulphur Thermal Baths (Loutra Thermis)
Highlight • Natural Monument
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Lake Beletsi
Highlight • Lake
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Birdwatching Hut at Vivari Lagoon
Highlight • Mountain Hut
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Via ferrata trailhead
Highlight • Gorge
A beach in the north, created at the end of the Palaiochora Gorge. At this point, there is a small freshwater lake and a strip of land (pebble beach) separating the sea from the lake. The gorge at this point is particularly impressive.
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Sunset View Over the Bay
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Tips from the Community
Nice artificial enclosure. The turtles seem to have gone missing.
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There are lots of turtles living in the pond 🐢
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There is also a geocache here ;-)
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Kaki Lagada A beach in the north, created at the end of the Palaiochora Gorge. At this point, there is a small freshwater lake and a strip of land (pebble beach) separating the sea from the lake. The gorge at this point is particularly impressive.
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Great spot for a break and nice photos of the Dam and artificial Lake...
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A 158,000 m² park and home to more than 7,000 trees and 40,000 shrubs, as well as hundreds of species of birds, fish, and turtles.
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With changing rooms, parasols and easy access to the water. 💦 Here you can feel the warm sulphur water in some places. But it flows directly into the sea and mixes. Very slippery, so take swimming shoes with you.
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Frequently Asked Questions
What makes Lake Vouliagmeni a unique destination in Attica?
Lake Vouliagmeni is a captivating natural formation known for its brackish water, fed by underground thermal springs and seawater. Its waters maintain a consistently warm temperature (21-29°C) year-round and are rich in beneficial minerals, offering therapeutic properties. The lake also features an extensive, partially explored underwater cave system and is home to Garra Rufa fish. It's designated as a Landscape of Special Natural Beauty and part of the Natura 2000 network. You can find more details about this unique spot at Vouliagméni Lake 🏊.
Are there any historical landmarks near the lakes in Attica?
Yes, near Lake Marathon, you can visit the architecturally significant Marathon Dam. This dam, clad in white Pentelikon marble (the same material used for the Parthenon), was crucial as Athens' primary water source for decades. The area around Marathon Lake and Dam offers panoramic views and a glimpse into the region's infrastructure history.
What kind of wildlife can I observe at Lake Beletsi?
Lake Beletsi is recognized as an important wetland, supporting a diverse ecosystem. It's an excellent spot for wildlife observation, particularly birdwatching, as it hosts migratory birds and permanent waterfowl like ducks and swans. The lake also contains various fish species such as carp and eels, as well as turtles. The surrounding landscape is characterized by pine and fir trees, providing a natural oasis for these creatures. Learn more about this natural haven at Lake Beletsi.
What outdoor activities are available around the lakes in Attica?
The lakes in Attica offer a variety of outdoor activities. Around Lake Marathon, you can enjoy hiking, biking, and water sports like windsurfing and jet skiing, in addition to picnicking and walking. Lake Beletsi is popular for picnicking, hiking, biking, photography, nature walks, and birdwatching. For cycling enthusiasts, there are numerous routes in the wider Attica region, including those suitable for touring bicycles and road cycling.
Are there family-friendly options among Attica's lakes?
Yes, several lakes in Attica are considered family-friendly. Lake Vouliagmeni offers a unique natural spa experience with amenities like lifeguards and changing rooms. Marathon Lake provides designated picnic spots and walking trails amidst scenic landscapes. Lake Beletsi is also a great choice for families, offering opportunities for picnicking, nature walks, and birdwatching in a peaceful setting.
What is the best time of year to visit the lakes in Attica?
The lakes in Attica offer pleasant experiences throughout the year. Lake Vouliagmeni's thermal waters maintain warmth even in cooler months. Lake Beletsi can be enjoyed in winter with the possibility of snow, and offers refreshing breezes in summer. Generally, spring and autumn provide mild weather ideal for outdoor activities like hiking and biking, while summer is perfect for water-based activities and enjoying the lakeside amenities.
Can I find easy hiking trails near the lakes in Attica?
Yes, there are opportunities for easy walks and hikes around the lakes. Lake Marathon offers walking trails suitable for relaxed strolls. Lake Beletsi is also ideal for nature walks. For more general easy hiking options in the region, you can explore various easy hikes in Attica.
Is there parking available at the main lakes?
Yes, parking is generally available. Lake Vouliagmeni is well-equipped with free parking for visitors. Marathon Lake also has parking facilities, particularly near the dam and picnic areas. Lake Beletsi, being a popular spot for outdoor enthusiasts, also accommodates visitors with parking options.
What are the swimming conditions like in Attica's lakes?
Swimming conditions vary by lake. Lake Vouliagmeni is renowned as a natural spa, offering therapeutic swims in its consistently warm, mineral-rich brackish waters. It's a unique experience with Garra Rufa fish providing natural exfoliation. While Marathon Lake has clear waters and sizable, clean beaches, it's primarily a reservoir and often used for water sports rather than general swimming. Lake Beletsi is a wetland and more suited for nature observation than swimming.
Are there any facilities or amenities at Lake Vouliagmeni?
Yes, Lake Vouliagmeni is well-equipped with various amenities to enhance your visit. These include lifeguards for safety, free parking, Wi-Fi access, lockers for personal belongings, changing rooms, showers, and a convenient beachside bar-restaurant. Due to its popularity, especially during peak seasons, making reservations is advisable.
What kind of views can I expect when visiting the lakes in Attica?
The lakes in Attica offer diverse and picturesque views. Marathon Lake provides expansive panoramic views set amidst a mountainous landscape with natural woodlands. Lake Beletsi, nestled on the eastern slopes of Mount Parnitha, offers serene views of a small lake surrounded by pine and fir trees. Lake Vouliagmeni presents a unique natural beauty with its 'sunken lake' appearance and surrounding lush vegetation.
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