Laguna Churup is certainly one of the most beautiful lakes in the Cordillera Blanca, and ideal for people who are looking to acclimatize. Surrounded by beautiful peaks within an Andean landscape, Churup is a beautiful turquoise green, crystalline lake. This classic trek to the lake is one of the best options for a 1-day trek in the beautiful Cordillera Blanca amongst snow-covered peaks, albeit with a good deal of effort.