Best natural monuments around Sisak are centered around the unique Lonjsko Polje Nature Park, a significant natural treasure in Croatia. Sisak itself is situated at the confluence of the Kupa, Sava, and Odra rivers, contributing to a rich riverine landscape. This region is characterized by vast wetlands and floodplains, offering a distinct ecosystem shaped by the Sava River. It is a premier destination for observing diverse wildlife and experiencing a traditional way of life intertwined with nature.
Last updated: October 2, 2026
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In spring the black stork returns to the swamp forests and you can admire it from this tower. The black stork breeds in Eastern Europe and is more tied to swamp forests. It is more of a fish eater than its white cousin.
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To enjoy from all peace and well hidden. Especially in spring you can enjoy many water birds here. Also the shy white stork can be observed from this hidden position around the forests.
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The area forms a large water reservoir, this lake almost fills up at low tide and at high tide the water reaches the dike with the road.
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Not only are there many wild boars in this natural forest, the rare black stork also lives here.
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The most striking feature of Lonjsko Polje is that flooding can occur throughout the year, due to the unique position of the Sava and its tributaries, which makes the park an important buffer zone for the surrounding inhabited areas.
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Lonjsko polje is often submerged when the water is high
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This is the largest marshland in Europe and therefore the breeding ground for storks. In September all storks have already left for their wintering place.
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The Sisak region is dominated by the unique landscape of Lonjsko Polje Nature Park, one of Europe's largest and best-preserved natural floodplains. You'll encounter vast wetlands, expansive meadows like the Meadows of Lonjsko Polje, and dense forests. The city of Sisak itself is situated at the confluence of the Kupa, Sava, and Odra rivers, offering picturesque riverine scenery.
Lonjsko Polje Nature Park is a haven for wildlife, especially birds. It's an internationally recognized Important Bird Area, home to over 250 bird species, including white and black storks, white-tailed eagles, and Eurasian spoonbills. You can often spot them from vantage points like the Observation tower. The park also hosts native Posavina horses and Turopolje pigs, which roam freely, and the Natural forest is known for wild boars and the rare black stork.
Yes, many natural areas around Sisak are suitable for families. Lonjsko Polje Nature Park offers easy terrain for walking and cycling. Highlights like the Meadows of Lonjsko Polje, the Observation tower, and the Water reservoir are all considered family-friendly. The park's visitor centers in Čigoč and Krapje can provide information on guided tours and activities like boat rides, which are great for all ages.
The best time to visit depends on your interests. Spring (April-May) is excellent for birdwatching, as storks return and nest, and the landscape is lush. Summer (June-August) is ideal for cycling, hiking, and boat rides, though it can be warm. Autumn (September-October) offers beautiful colors and cooler temperatures. Keep in mind that Lonjsko Polje is a floodplain, so seasonal flooding can occur, which creates a unique, dynamic landscape but might affect access to certain areas.
The Lonjsko Polje Nature Park offers numerous opportunities for cycling and hiking on asphalt, gravel trails, and forest paths, with minimal changes in altitude. You can explore traditional villages and observe wildlife. For more structured routes, you can find various hiking trails around Sisak, including easy loops like the Cigoc loop from Čigoč. There are also road cycling routes available, such as the easy Roadbike loop from Sisak.
Yes, exploring Lonjsko Polje Nature Park by boat or canoe is a popular activity. You can take solar-powered boat rides on the Strug River or traditional rafts on the Sava, offering a unique perspective of the floodplains and riverside landscapes. This is an excellent way to get close to the water birds and experience the vastness of the wetlands.
Yes, the Observation tower is a notable viewpoint within Lonjsko Polje, specifically designed for quietly watching various bird species, including the shy white stork. From this hidden position, you can observe the surrounding forests and water birds, especially during spring.
The Nature reserve refers to a significant part of Lonjsko Polje, recognized as the largest marshland in Europe. It serves as a crucial breeding ground for storks, making it an extremely important site for ornithological observation and conservation efforts. In September, most storks migrate to their wintering grounds.
The Meadows of Lonjsko Polje are unique because they are regularly flooded during higher Sava water levels. This natural process creates beautiful wetlands with exceptional biodiversity and helps reduce flooding in populated areas. The sight of these vast, dynamic meadows is truly impressive, with distant forests creating a mysterious, expansive landscape.
Yes, Lonjsko Polje Nature Park is distinct for its harmonious blend of nature and traditional human activity. Villages within the park, such as Čigoč and Krapje, showcase well-preserved traditional wooden houses. Čigoč is even designated as Europe's first official 'stork village' due to the numerous storks nesting on its roofs, while Krapje holds the title of a village of architectural heritage.
The terrain around Sisak, particularly within Lonjsko Polje Nature Park, is generally flat with minimal changes in altitude. This makes it ideal for easy to moderate cycling, hiking, and running. Most trails are on asphalt, gravel, or forest paths, suitable for a wide range of fitness levels. The main challenge might be navigating areas affected by seasonal flooding.
Dedicated visitor centers are located in Čigoč and Krapje within Lonjsko Polje Nature Park. These centers offer valuable information, guided tours, and amenities such as bicycle and canoe rentals, helping you make the most of your visit to the natural monuments.


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