Watch Natural World Season 26 Episode 12 Online

Documentary about Plitvice National Park in Croatia, Europe's oldest and one of its most beautiful national parks - a network of crystal clear lakes connected by thousands of waterfalls. Its ancient beech forests are a stronghold for wolves, lynx and bears, animals that almost became extinct during the Balkan civil war and are now recovering. Hidden beneath the trees are spectacular limestone caves, home to salamanders and cave voles.