Next to the Himalayas, the Andes are the highest mountain chain on earth. They run down the center of Peru and form four seperate mountain ranges, or *cordilleras*, which are known as the Blanca, Negra, Oriental, and Central. Mountain destinations are ideal for travelers looking to hit the trail and explore the outdoors in Peru. In the following destinations, you can often enjoy bird watching, wildlife observation, hiking, and rafting. You might also visit archeological sites and small traditional villages.