Over the course of 60 years Studer climbed 650 summits, in the Bernese Alps, the Pennine Alps, the Dauphiné, the Tyrol, the Pyrenees and Norway. At the age of 68 he climbed Mont Blanc; when he was 79 he climbed Pic d'Arzinol in the Valais; and at 81 the Niederhorn.