Driving can be a challenge—locals rarely obey rules of the road—but a car is one of the best ways to explore the region. The Pan-American Highway serves the coast. From there, take Highway 109 to Huaraz and Highway 8 to Cajamarca. Small, reputable, rental-car agencies can be found in Trujillo, Chiclayo, Piura, and Huaraz. Think twice before driving to archaeological sites; some are hard to find, and it's easy to get lost on the unmarked roads. Consider hiring a driver or taking a tour. Roads in the Northern Highlands are always in some degree of disrepair.