It’s always exciting to discover a new world, meet people from a different culture, and learn about the history of other nations. Personally, I prefer this kind of trip to just lying on the beach. I also travel to new countries from time to time. I once toured around the former Yugoslav countries, including Slovenia. And it’s easy to find a decent car there. You can check where to rent a car in Slovenia here:
https://getrentacar.com/en-US/slovenia . There are both rental companies and private owners, so you can easily find something that suits you.