The unusual nature
Biebrza National Park is an ideal place for tourists who want a nice way to spend time in nature. In this area because we have a lot to choose from various hiking trails, both pedestrians and bicycle or even canoe. Prepared trails here are very diverse and different distances and levels of difficulty trails cause that every tourist will find here an appropriate proposal for yourself. The Biebrza National Park, we can see not only the unique marshes, but also to meet many not found in any other region in the country specimens for both flora and fauna. The area itself particularly pleased marsh birds.
Wikipedia about Lower Silesia
Lower Silesia (Polish: Dolny Śląsk; Czech: Dolnà Slezsko, Latin: Silesia Inferior; German: Niederschlesien; Silesian German: Niederschläsing; Silesian: Dolny Ślůnsk) is the northwestern part of the historical and geographical region of Silesia; Upper Silesia is to the southeast.
Throughout its history Lower Silesia has been under the control of the medieval Kingdom of Poland, the Kingdom of Bohemia and the Austrian Habsburg Monarchy from 1526. In 1742 nearly all of the region was annexed by the Kingdom of Prussia and became part of the German Empire in 1871, except for a small part which formed the southern part of the Lower Silesian Duchy of Nysa and had been incorporated into Austrian Silesia in 1742. After 1945 the main part of the former Prussian Province of Lower Silesia fell to the Republic of Poland, while a smaller part west of the Oder-Neisse line remained within East Germany
Źródło: https://en.wikipedia.org/wiki/Lower_Silesia
Nature in Poland
In Poland, we find a lot of sites that are attractive from the environmental point of view. Actually, in each province we can find no problem region, which is worth a visit just for that reason. Certainly the most attractive in terms of natural places, and also the most frequently chosen by tourists regions are mountains. The highest mountains in Polish is a place where you can really relax, and by the way also to learn about the local wildlife. Of course, Poland is worth a visit also in other Polish regions: notable, for example Bialowieza Forest and mites. The sea also find unique natural regions that are worth seeing.