Climbed the west ridge from a bivi half way between the cab. de Tsa and the actual start of the climb. Rock quality is great, but stay on the ridge and do not climb to far off of the ridge. After this we climbed the Aiguille de la Tsa and descended to Arolla via the glacier du Bertol.
Climbed the West-ridge in one day from Arolla with Auke and Ward. Very beautiful climb in the best rock! Never very difficult but very constant and long. Descent over the Pointe de Tsalion towards Arolla. Great tour!