So I'm planning a bit of a road trip in August. Just me, no kids. Want to drive to Croatia, with Plitvice as the destination there. I've driven in Europe before but not across borders. I've read up on all the rules and laws etc but I'd love some tips from others who might've made a similar journey - driving the romantic road in Germany and heading towards Croatia. Anything I must see/do, things I should take I might not have thought of etc...will be staying in a mixture of hostels and hotels, planning not to drove more than 4hrs a day. Flexible on length of trip between 2-3 weeks. TIA!