I love to travel south-east direction from Sarajevo. Not crowded and not so bad road. Beautiful and interesting in any time and season. Well, maybe not so interesting in the winter time, if you are not prepared and if the road is closed.
I prefer to use it in the summer and autumn. In the summer, in the mountains, air is refreshing and a gentle breeze makes you a good mood. In the fall season, colours are incredible and outstanding. You simple forget anything else and makes so many brakes and stops for shooting photos and sometimes this travel take twice needed time.
My favourite breaks are Tjentiste, national park with a great monument from the second world war, Cemerno, the mountain crossing and natural border between continental and Mediterranean climate with a fantastic view to the highest mountain peaks in Bosnia toward state border with Montenegro and Bileca, with an old medieval necropolis, some 30 kilometres before the final stop in Trebinje.
With all these stops and temporary short brakes, you need about 5 hours of very smooth and relaxing drive.
If you come here, take your time and pass this route. Breakfast in Tjentiste, coffee in Bileca and lunch in Trebinje. Don't hurry and take it easy...