Poland is one of Europe's largest countries by land area, and much of that is made up of stunning nature reserves. No other country in Europe has more square kilometres of national parks. Explore huge wandering dunes on the Baltic, thousands of lakes in the dream landscape of Masuria, gigantic river systems of Biebrza and Narew, mystical primeval forests and the rugged crags of the Southern Mountains. Poland's landscapes are as diverse as they are endless.