Artesonraju is one of the most beautiful snow and ice pyramids in the Cordillera Blanca. It is fairly easy to access (2 days to BC from Huaraz) and has a number of nice lines that can be climbed at various levels of difficulty. A detailed description of the routes follows below.
A nice thing compared to e.g. Alpamayo is that international commercial groups rarely visit Arteson, although its beauty is similar. Usually there are some other climbers with you in the camps, but it never gets too crowded. The approach along the Lake Paron is a highlight in itself, and the middle camp among the trees is as pleasant a campsite as you can find one in this area.