Poloniny National Park is a national park in northeastern Slovakia at the Polish and Ukrainian borders, in the Bukovské vrchy mountain range, which belongs to the Eastern Carpathians. It was created on 1 October 1997 with a protected area of 298.05 km² and a buffer zone of 109.73 km².
The Tatra Mountains, part of the Carpathian mountain chain in eastern Europe, create a natural border between Slovakia and Poland. Both Slovak and Polish sides are protected as national parkland and are popular destinations for winter and summer sports. The Tatras are home to wildlife including the Tatra chamois, marmot, lynx and bears. Slovakia has the highest mountain in the range: 2,655m Gerlach Peak.