yeah man. if the rainy season lifts, the corderilla blanca will be epic... tallest concentration of peaks over 18,000 ft (33 of them) after the hymalayas. the city of hauraz, peru is the HQ to explore all that stuff. check out laguna 69 and also the big glacier to the south of hauraz... apparently you can ride up to about 17,000 ft.
regarding the caņon del pato, you can only reach it from the south... after all the tunnels on the north side of the caņon, the bridge is out and being rebuilt. so you have to come in from the south and ride back out to see if. the tunnels are crazy.