Lakes around Sejny are located in northeastern Poland, within the Suwałki Lake Area, a region characterized by its post-glacial lakes and natural landscapes. The town of Sejny is situated on the Marycha River, which connects to the broader network of waterways. This area offers a variety of natural attractions, including unique lake formations and protected reserves. The region provides opportunities for experiencing diverse aquatic environments and natural settings.
Last updated: May 21, 2026
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Lake Gaładuś, partially located in Lithuania, is one of the most beautiful bodies of water in the Suwałki Region and a true gem of the Sejny region. Its elongated shape, with bays, headlands, and islands, creates an exceptionally picturesque landscape. The lake's shores are high and hilly, covered with meadows and small forests, providing stunning views during stops or short breaks. The waters are of high purity, and the bottom is sandy and rocky, ideal for swimming on warm days.
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Lake Hołny in the Sejny commune is a picturesque reservoir covering over 150 hectares, located right on the border with Lithuania. Thanks to its quiet zone, it offers a peaceful atmosphere, and the industry-free environment encourages relaxation close to nature. The shores are largely covered with dense reeds and rushes, which limits access but gives the lake a wild character. It's an interesting stop on the trail, especially for those seeking peace, solitude, and contact with nature.
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Atmospheric place! You can feel the spirit of the Nobel Prize winner here!
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a beautiful and secluded place, worth leaving the road for a moment
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A public place with access to a very clean lake. Place for a bonfire. Poor location for bivouac but to cool down in the lake in hot weather just right.
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A strict protection reserve established in 1959. Subject of protection: a dystrophic lake with floating islands of peat moss Access to the lake is very difficult. I suggest leaving the bike upstairs. The path leads across a steep ravine with fallen trees (last two photos). The lake itself can be walked around, although the area can be wet at times.
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Czesław Miłosz's manor in Krasnogróda. In a beautifully situated property, we can find a poet's museum run by the Borderland Foundation. http://www.plimitede.sejny.pl/
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The region offers several distinctive natural attractions. You can visit the Tobolinka Nature Reserve, which protects a dystrophic lake known for its unique floating islands of peat moss. Additionally, Jezioro Płaskie is noted for its "oceanic atoll-like" appearance, and Lake Hańcza, the deepest lake in Poland, offers crystal-clear waters and unique underwater landscapes for divers and nature enthusiasts.
Yes, the Czesław Miłosz Manor and International Dialogue Center in Krasnogruda is a significant historical site. It features a charming descent to the lake behind the manor house, offering an atmospheric setting with cultural importance.
The lakes and rivers around Sejny provide numerous opportunities for outdoor activities. You can enjoy kayaking on the Marycha River or the historic Augustów Canal. For cycling, there are various routes, including those around Lake Gaładuś and Lake Hołny. Hiking and mountain biking trails are also available, with options like the "Poland/Lithuania border – View of Lake Gaładuś loop" for MTB or running trails around Tobolinka.
Absolutely. Many lakes in the area are suitable for families. For instance, the View of Lake Gaładuś is a family-friendly viewpoint, and Lake Hołny is also noted as family-friendly. There's also a Small Beach by the Lake, which is a public place with access to a very clean lake, ideal for cooling down on warm days.
Yes, several lakes offer good conditions for swimming. Lake Gaładuś, for example, has high purity waters and a sandy and rocky bottom, making it ideal for swimming on warm days. The Small Beach by the Lake also provides access to a very clean lake for swimming.
The warmer months, typically from late spring to early autumn, are generally the best time to visit for water activities like swimming, kayaking, and enjoying the beaches. During this period, the weather is pleasant for hiking and cycling as well. The region's natural beauty, with its clear waters and lush surroundings, is particularly vibrant then.
Yes, the Tobolinka Nature Reserve is a strict protection reserve dedicated to preserving its unique ecosystem. Lake Wigry, located within Wigry National Park, is also a "quiet zone" where motorboats are not allowed, making it perfect for peaceful relaxation, kayaking, and sailing amidst dense forests.
While Sejny is situated on the Marycha River, many notable lakes are easily accessible nearby. For instance, Lake Gaładuś is partially located in Lithuania, close to the Sejny region. Lake Hołny is also right on the border with Lithuania, within the Sejny commune. Other significant lakes like Wigry and Hańcza are part of the broader Suwałki Lake Area, making them a short drive from Sejny.
Yes, there are several cycling routes that offer scenic views of the lakes. For example, the "View of Lake Wigry – Camaldolese Monastery in Wigry loop from Sejny" is a moderate cycling route. Another easy cycling route is the "View of Lake Dusalis – Sejny White Synagogue loop from Sejny." You can find more cycling options in the Cycling around Sejny guide.
The terrain around the lakes can vary. Some areas, like the path to Tobolinka Nature Reserve, can be challenging, involving steep ravines and potentially wet areas. Other trails, such as many of the MTB and running routes, range from easy to moderate difficulty, often traversing forests, meadows, and hilly shores, providing diverse experiences.
Yes, there are places to relax by the water. Jezioro Płaskie, for instance, has a beach at a campsite in Dworczysko. Additionally, the Small Beach by the Lake offers a public access point to a clean lake, suitable for unwinding.
Definitely. The Marycha River, which flows through Sejny, is suitable for canoeing. The historic Augustów Canal, connecting various lakes and rivers, also offers excellent routes for kayaking and boating through scenic landscapes. Lake Wigry, being a quiet zone, is perfect for kayaking and sailing.


Still not found your perfect lake around Sejny? Check out the guides of these regions to see even more beautiful places.