In 1872, cave rails were laid along with first cave train for tourists. At first, these were pushed along by the guides themselves, later at the beginning of the 20th century, a gas locomotive was introduced. After 1945, the gas locomotive was replaced by an electric one. About 5.3 kilometers (3.3 mi) of the cave system are open to the public.

Ljubljana has no world-famous attractions, which is just great: there's no need to hop from one place to another, taking photos and crossing the items on your checklist. You have all the time to stroll around and enjoy the city itself. With a population of 300,000, it is one of the smallest capital cities in Europe. Slovenia's capital and largest city also happens to be one of Europe's greenest and most liveable capitals. Car traffic is restricted in the center, leaving the leafy banks of the Ljubljanica River, which flows through the city's heart, free for pedestrians and cyclists.