ocr: The tive-day hike to Machu Picchu, the world-famous Inca city ruins in the Andes at the end of the 20-mile 'Camino Inca," - is the most popular trek in South America. The trailis also visited by thousands of day- trippers. Ecotourism at lodges in the Amazonis growing. Whether this will promote conservation is disputedby some environmentalsts. Many object that indigenous tamilies are being forcedto work, dance and produce handicrafts for tourists. The pre- Colombian lesert areas clearedin patterns by the Nazca civilization (laown as the Nazca lines) dating from the 2nd century BC,are another ma ...
