I climbed Mt Chopicalqui, a challenging 20,834ft mountain in the northern part of Peru in summer 2012: while preparing our gear for the push to the summit, a stunning sunset on the glacier accompanied us to a short night of sleep.
Take the full hike starting from Llupa and then keep going to you meet the intersection in Pitek. You'll take a combi from Huaraz for the price of 3 soles. When you get further up to the rocks there are 2 paths, the one on the left has cables to climb up the rocks along the waterfall. The path on the right doesn't have cables but is slightly easier on foot.
Lake Churup is a great hike to acclimate before doing the Santa Cruz Trek. Lake Churup sits at 4450m/14,600ft.
Huascarán National Park is a lush natural area within the Cordillera Blanca, a range of the Andes that runs through the Ancash region of central Peru. You will find an abundance of hiking trails, lakes, and glaciers, all of which you can explore to your heart's content for the small entrance fee of 10 soles per person. Incredible views confront you at every turn throughout the park's 1,313 mi² range: snowcapped mountain backdrops, freshwater creeks, and cattle rambling through the pastures. If you are in the Huaraz area, consider spending at least a day here.