Apu Salkantay demands mental and physical strength. The adventure is well worth the challenge. I recommend this expedition to anyone that is physically fit. The experience will leave you feeling accomplished and stronger than ever. Prepare yourself by training, sessions on the stair master would be my recommendation.
Arrive in Cusco several days before departing on the trek to acclimate to the altitude. Bring rain gear and waterproof hiking boots. You will get wet ! You will also benefit by bringing layers. Several days were cold, close to freezing temperatures, and other days were hot ! I wish I had packed more tanks and shorts.