Protected areas
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".