Top 6 Lakes in Harghita
Best lakes in Harghita County are characterized by diverse geological formations and unique natural beauty. This region in Romania features volcanic lakes, natural dam lakes, and helio-thermic lakes, offering varied landscapes for exploration. Harghita's natural environment provides opportunities for outdoor activities and experiencing distinct ecosystems.
Best lakes in Harghita
- The most popular lakes is Red Lake (Lacul Roșu), a lake known for its striking reddish hue and submerged spruce tree trunks. This natural dam lake was formed by a…
Last updated: April 29, 2026
Red Lake (Lacul Roșu)
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Here you can go by boat to the lake, buy food, souvenirs or just stretch your legs in beautiful nature.
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Path Around Lake Saint Ana
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Saint Anne Chapel
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Ciucaș Lake
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Lake Sfânta Ana
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View of Red Lake from Suhardu Mic
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Tips from the Community
Anyone visiting Lake Sfânta Ana doesn't need meteorologists to predict the weather. They have an empirically proven method at their disposal, provided by the volcano itself: two cracks in the mountain that predict the weather. Locals know: "If the fumes from the cracks burn your nose, it's a sign of a thunderstorm. If not, it will be a sunny day, perfect for hiking."
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The Chapel of St. Anne was first documented in 1349. The original chapel was made of wood. Legend has it that the small church was destroyed during both the Tatar and Turkish invasions. Its restoration was documented in 1562. Between 1562 and 1764, two annual festivals were celebrated: St. Anne's Day and the Feast of the Nativity of the Virgin Mary. Up to 30,000 pilgrims came to the Feast of St. Anne. The chapel was badly damaged during the First World War and was demolished and rebuilt in 1927. Nothing remains of the nearby St. Joachim Chapel, built in 1562.
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Saint Ana Lake in the Ciomatului Mare crater is the only lake of volcanic origin in Central and Eastern Europe and the most visited tourist attraction in Szeklerland. It is surrounded by the steep walls of the volcanic cone of Monte Ciomat, with several higher peaks: Ciomatul Mare (1301 m), Ciomatul Mic (1238 m), Tata Hill (1174 m) or Piscul Pietros (1125 m). The lake, unique in Europe, is located at an altitude of 946 m, has a diameter of 1737 m and a greatest depth of 7 m. From the crater rim, 13 temporary streams formed after the rains carry water and gravel into the lake. The lake is fed by rainwater and water from snowmelt. The lake's sedimentation process began at the northern and western edges, with the lake floor being covered by an increasingly thick layer of mud. The lake is currently 6.5 m deep at its deepest point. In good weather, especially without wind, you can see gas bubbles rising from the bottom of the lake, which are actually an expression of post-volcanic activity. In the northern, northeastern part of the lake, you can see a layer of floating peat about a meter thick.
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The Red Lake Iron-containing clay colors the lake red Nicknamed the “Murder Lake” In 1838, a forested rock massif slid from a height of 1000 m into the Bicaz. The masses of rubble acted like a natural dam, the pine trees drowned and today only their stumps protrude from the water Numerous snack bars on the lake shore
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Welcome to an unforgettable adventure for bike lovers! Discover a cyclist's paradise where you cycle through extensive vineyards and the sun accompanies every pedal stroke. Here you will be welcomed by warm and hospitable locals who want to offer you the best experiences. With excellent wines to pamper your senses and the unique hospitality, you will return home with unforgettable memories and a warm heart. It is a place where adventure meets the refined taste of wine and the warmth of the people.
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The iron-containing clay colors the lake sometimes more, sometimes less reddish. In any case, that gave him his name. This place was a real tourist magnet and it seemed obligatory to take a boat trip here. On the hiking trail around the lake you only meet a few local anglers.
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When arriving at the lake, make sure to start circumnavigating it in a counter-clockwise fashion, to make sure that the rewarding coffee and pastry hut is at the end of your walk…
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Lacul Roșu is a popular tourist destination. If you come by here by bike, it's worth making a short stop to eat or have a cold refreshing drink. There are enough possibilities to do so. If you want to stay a little longer, you can also rent a boat and paddle a bit on the lake.
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Frequently Asked Questions
What makes Lacul Sfânta Ana unique among the lakes in Harghita?
Lacul Sfânta Ana is Romania's only volcanic lake, formed in the crater of Ciomatu Mare. It is known for its exceptional water purity, fed exclusively by rainwater, and locals even use two cracks in the mountain near the lake to predict the weather. You can explore its serene beauty by following the Path Around Lake Saint Ana.
What distinctive natural features can I expect to see at Lacul Roșu?
Lacul Roșu, or Red Lake, is famous for its striking reddish hue, which comes from iron oxide deposits. Its most captivating feature is the submerged forest of spruce tree trunks that pierce the water's surface, creating a unique and haunting landscape. Visitors can enjoy boating among these tree stumps. For a panoramic view, consider the View of Red Lake from Suhardu Mic.
Are there any lakes in Harghita with therapeutic properties?
Yes, Lacul Ursu (Bear Lake) in Sovata is renowned as the world's largest helio-thermic lake. Its high salt content and a freshwater layer create a natural greenhouse effect, heating the deeper saltwater to therapeutic temperatures. These warm, salty waters are widely recognized for their benefits in treating various ailments, making Sovata a popular balneoclimateric resort.
What kind of rare flora can be found near the lakes in Harghita?
Adjacent to Lacul Sfânta Ana, you'll find Tinovul Mohoș, an alpine peat bog that is a sanctuary for relict plant species from the Ice Age. This includes carnivorous plants like round-leaved sundew (Drosera rotundifolia) and other unique species such as bog-rosemary. Visits to this delicate ecosystem are typically conducted with a guide on marked wooden trails.
What outdoor activities can I do near the lakes in Harghita?
Harghita County offers a variety of outdoor activities near its lakes. You can find numerous hiking trails, including challenging routes around the Bicaz Canyon and moderate loops near Red Lake. Cycling and mountain biking are also popular, with routes like the 'Tree Stump – Forest Path loop' near Lacu Roșu. For more details on routes, explore the Hiking in Harghita, Cycling in Harghita, and MTB Trails in Harghita guides.
Are there family-friendly options for visiting the lakes in Harghita?
Many lakes in Harghita offer family-friendly experiences. For example, the Path Around Lake Saint Ana is suitable for a quiet walk, and there are stalls for refreshments. Red Lake (Lacul Roșu) is a popular recreational area where families can enjoy boating and picnicking. The area around Lacul Ursu also features walking trails and promenades.
What is the best time of year to visit the lakes in Harghita?
The best time to visit the lakes in Harghita generally depends on your preferred activities. Summer offers ideal conditions for boating on Lacul Roșu and enjoying the therapeutic waters of Lacul Ursu. Spring and autumn provide pleasant temperatures for hiking around Lacul Sfânta Ana and observing the unique flora of Tinovul Mohoș. Winter can offer a different, serene experience, especially for those interested in winter hiking, though some facilities might be limited.
Are there any historical or cultural sites near the lakes?
Yes, near Lacul Sfânta Ana, you can visit the Saint Anne Chapel. This picturesque chapel has a rich history, with its origins documented as early as 1349, and has been a site of pilgrimage for centuries. It offers a cultural dimension to your visit to the volcanic lake.
What should I know about parking and accessibility at the lakes?
Parking is generally available near popular lake destinations like Lacul Sfânta Ana and Lacul Roșu, though access to some areas, such as Lacul Sfânta Ana, may be subject to charges. For Tinovul Mohoș, visits are typically guided and follow marked wooden trails to preserve the delicate environment. The area around Lacul Ursu also has good infrastructure with walking trails and promenades.
Can I go wild swimming in any of the Harghita lakes?
While some lakes are popular for recreational activities, wild swimming is not universally recommended or permitted. Lacul Sfânta Ana's water purity means it lacks oxygen and aquatic life, making it less suitable for swimming. Lacul Ursu is known for its therapeutic properties and has specific visiting hours and rest periods to maintain its unique balance. Ciucaș Lake, an artificial lake, is no longer open for swimming due to water quality issues. Always check local regulations and conditions before attempting to swim.
What do visitors enjoy most about Red Lake (Lacul Roșu)?
Visitors particularly enjoy the unique scenery of Red Lake (Lacul Roșu), especially the striking sight of the submerged spruce tree trunks. It's a popular spot for recreational boating, allowing people to glide among the trees. Many also appreciate it as a pleasant rest stop with options for food, souvenirs, and simply stretching their legs in beautiful nature.
Are there any viewpoints offering scenic vistas of the lakes?
Yes, Harghita offers several excellent viewpoints. For instance, the View of Red Lake from Suhardu Mic provides panoramic vistas of Lacul Roșu and its unique features. The area around Lacul Sfânta Ana also offers picturesque views, being part of the Mohos Natural Reserve.
What is the significance of Lacul Ursu's unique shape?
Lacul Ursu, meaning 'Bear Lake,' gets its name from its distinctive shape, which resembles a bear's outstretched hide when viewed from above. This unique geological formation, combined with its helio-thermic properties and high salt content, makes it a remarkable natural wonder and a significant balneoclimateric resort.
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