Because of the infrequent bus services and sparse railway stations, a car is definitely the best way to explore this region. The winding single-lane roads demand a degree of driving dexterity, however. Local rules of the road require that when two cars meet, whichever driver reaches a passing place first must stop and allow the oncoming car to continue (this may entail a bit of backing up). Cars driving uphill have priority, and small cars tend to yield to large commercial vehicles. Never park in passing places, and remember that these sections of the road can also be used to allow traffic behind you to pass. Note that in this sparsely populated area distances between gas stations can be considerable, so it is wise to fill your tank when you see one.