Nature - Fact and figures
The most precious asset of Podlasie is its nature. Around 30% of the area of the voivodship is under legal protection. There are 
four national parks (Wigry, Biebrza, Białowieża and Narew), and 
three landscape parks (Suwałki, Łomża – Narew Valley and Knyszyn Forest), 
88 nature reserves and 
15 protected landscape areas. The voivodship constitutes a part of the ecologically clean area of "
the Green Lungs of Poland".