This route takes you from Postojna via Ljubliana and Celje to Maribor. It is a route with a lot of varying landscapes. From roads with excellent asphalt to paved forest paths. Good to drive for people with 2 years motor experience. Those who like to visit cities will certainly find what they are looking for in the two largest cities in Slovenia, Ljubliana and Maribor, but will have to pay for extra overnight stays.