Wielkopolski National Park is a National Park within the Wielkopolska region of west-central Poland, approximately 15 km south of the regional capital, Poznań. It gets its unique nature from post-glacier lakes, surrounded by dense pine forests, characterised by its spectacular location. Together with the protective zone around it, it includes part of the Poznań Lakeland and parts of Poznań's Warta Gorge.
The Park has its headquarters in the village of Jeziory.
Wikipedia https://en.wikipedia.org/wiki/Wielkopolski_National_Park
Coordinates 52°16'50.809" N 16°47'29.142" E