Ljubljana Celje Piran Kranj
Hungary Croatia Austria Italy
Baltic Sea Black Sea Caspian Sea Mediterranean Sea
Kupa Drava Mura Sava
1945 1990 1980 1970
2 million 20 000 20 million 200 000
Desert Vineyards Lakes Forests
Krizna Jama Vilenica Skocjan Caves Postojna Caves