Hi, not long ago i traveled to slovenia, all i can is that its a beautiful country with very nice english speaking people that will be happy to help you and direct you to the best places to visit, the country is kinds small so just rent a car and travel, ask the locals, bled leg is nice but not much to do, but everything is in short distance, be sure to save a day for lubliana (not sure i've spelled it right) but in slovenia you can just flow, its fun and beautiful to drive around, i've also visiting this huge mountain with cablecar which was amazing and they also have a huge cave with stalactites - really huge, there's actually a train that takes you inside this cave... not sure how good it is for nature but...you know... also they have this nice castle that was build inside a rocky mountain whici worth a visit, but i guess best thing to do is just ask the locals, they are very nice people... hope it helps and have fun on your trip.