Slovenia surprises visitors at every step with its natural sites. In this tiny piece of Europe, the picturesque features of the Alpine, Mediterranean, Karst, and Pannonian worlds are combined. At the contact point of such naturally diverse regions, nature shows a hundred attractive faces.
Slovenia is a country of karst regions, and its Kras region gave its name to this type of limestone landscape across the world. In Slovenia, there are thousands of karst cavesandshafts, and about one tenth of them are open to visitors. The best known is Postojna Cave, but many prefer the Škocjan Caves, which are on UNESCO's list of world natural and cultural heritage sites. Snežna jama cave with its frozen stalactites in alpine Mount Raduha is a special sight, and the caves in the shallow karst of Dolenjska are also quite unique.
The springs, waterfalls, and lakes are different in each part of Slovenia. The karst springs of rivers are a surprising feature in the Julian Alps; waterfalls and whitewater rapids are found on the Soča, the Sava, the Krka, the Savinja, and numerous other rivers and streams that flow here through narrow gorges and there across wide valleys. Thermal and mineral springs have placed their stamp on northeastern Slovenia, where numerous health resorts developed but even today it is possible to see still-untamed mineral springs. Springs of mineral waters can be found as well in the Savinjske Alps and in Koroška. The majority of Slovenia's glacial lakes, including Lake Bohinj, the largest, are found in Triglav National Park, our largest area of protected nature. Lake Bled, which with its island is a world famous site in Slovenia, is also of glacial origin. Charms of a special kind are shown by karst lakes, among which the disappearing Cerknica Lake is the largest and the most picturesque. Special among the lakes of Slovenia is Divje jezero near Idrija, which reaches deep into the still unexplored karst depths.
Slovenia is a heavily wooded country with protected forests and areas of primeval forest. Throughout Slovenia, there are forest reserves, and primeval forests are still to be found in Kočevski Rog, on Gorjanci, on Pohorje . . . Individual protected trees are also natural assets that create unique landscape views with their magnificence. Protected forests, trees, and the indigenous flora and fauna are often a part of the landscape parks that preserve the heritage of individual areas. In Slovenia, there are dozens of such parks, from coastal Strunjan with its protected flysch landscape and steep coastal cliff and the Sečovlje salt flats with its reserve for migrating and shore birds to Bela krajina's Lahinja Park with its marshy botanical treasures or the glacial Logarska dolina valley in the Savinjske Alps. Many of Slovenia's natural sites are included in theme trails, forest education trails, and various local excursion programs.