Rated as one of the top ten hikes in the world by Conde Nast Traveler, the Santa Cruz trek in the Cordillera Blanca is not to be skipped. The terrain is incredibly varied, so expect to walk through marshy valleys, dry, desert-like plains, glacial lagoons and through the Punta Union pass at over 4,700 meters. The air is clean and the stars are unreal at night; you will never forget the views you will encounter.
Treks leave from Huaraz and can be accomplished in 3 or 4 days. Equipment and/or guides can be acquired in the city. You must be acclimatized to the altitude before embarking due to the strenuous activity at such high elevation.