Because you are visiting Andean areas, do not forget to take precautions to avoid altitude sickness. When you arrive at altitude, make sure you drink hot tea or coca leaf tea (mate de coca), walk slowly and eat lightlY
In order to prevent any health disorder, remember always drink bottled water.
Cusco City: 3,360 metres above sea level (m.a.s.l.)
Machu Picchu: 2,400 m.a.s.l.
Urubamba Valley: 2,850 m.a.s.l.