Volunteer with the California Institute for Peruvian Studies and you can help add to the list. You ll also visit Pachacmac, just outside Lima, which predates the earliest Inca ruins by 1,000 years. On your own, don t forget the Urubamba River Valley outside Cuzco. It s riddled with archaeological sites, including Ollantaytambo, a hilltop fortress with sweeping terraces where Inca forces resisted the Spanish more than 400 years ago. Plan to be there on June 24, and you can catch Inca descendants celebrating Inti Raymi, the Sacred Rites of the Sun, at the ancient fortress of Sacsayhuaman near Cuzco.
Natives often use coca leaves, used to make cocaine, to ease symptoms like nausea and headaches.
Go early in the morning, when there s no haze. Go to Travel Talk.