Most of this tour takes place at altitudes ranging from 8,000 to 12,500 ft. (2,400 to 3,800 m.) above sea level. Because the adventure starts in Lima (at sea level) and then continues to the lower Sacred Valley (9,200 ft. or 2,800 m.) and Machu Picchu (8,000 ft. or 2,400 m.), you have a chance to get slightly acclimated before you reach the higher elevation of Cusco (11,200 ft. or 3,400 m.).
Altitude does affect some people. Individuals may initially experience some shortness of breath and heart pounding. Other symptoms include: headaches, loss of appetite, nausea and feeling weak and dizzy.
Generally, the effects of altitude sickness are mitigated by drinking lots of water, resting periodically, avoiding alcohol and eating lightly. We strongly encourage you to consult with your physician to determine if this adventure is appropriate for you and whether prescription medications to prevent altitude sickness might benefit you.