The Gopło Landscape park protects the nature and historic values of Lake Gopło and its surrounding areas, including the marshes, reed stands, forests, meadows and grasslands.

Lake Gopło is the largest reservoir of the Wielkopolsko-Kujawskie Lake District. In the Middle Ages it was referred to as Mare Polonorum, or the Sea of the Poles. The impressive Ostrowski Peninsula cuts 4 kilometers into the lake and it is the haven of aquatic and mud birds. As many as 200 species can be seen here, including 150 breeding species (among them the white-tailed eagle, the cormorant and the greylag goose – the symbol of the park). There are also valuable localities of aquatic vegetation. With a little bit of luck, you can also spot the rare smooth newt or other amphibians – the European tree frog or the grass frog.

Alongside its undeniable natural and landscape qualities, the Nadgoplański Millennium park also preserves traces of culture. The town of Kruszwica is the former residence of the dukes from the Piast dynasty, and so a vital center of the creation of the Polish statehood. The most famous remnant of the castle in Kruszwica is the Mysia Wieża (the Mouse Tower), where, according to local legend, mice devoured the evil king Popiel. The tower is accessible to the public and serves as an observation deck.

Lake Gopło is a fragment of the Great Wielkopolska Waterway Loop route, joining the river Noteć via the Górnonotecki channel, and due to the Konińskie system of lakes and channels with locks, it is also connected with Warta in the town of Konin. The cruise ship “Pawełek” sails from Lake Ślesińskie to Kruszwica via Lake Gopło; another cruise ship – “Dziwożone” sails from the marina of the “Wityng” resort at Lake Wąsosko-Mikorzyńskie.