Planning to rent a car for a week in Croatia to explore different parts of the country. I've looked around and it seems a one-way rental is possible (pick up from Rijeka and return the car at Dubronvik). Per google map, there's a stretch of highway (around 15km), that goes through Bosnia. Are additional motor insurance required? I assume it's relatively "safe" to do so? Additional tourist visa required to travel through Bosnia?
I've email different car rental companies and none had replied. Appreciate any advice. Thanks.