From Refuge des Drayères, follow the GR57 (along the left bank of the Muandes) passing by Lac Rond, Lac des Muandes and over Col des Muandes, at 2,828 m (2 hrs). Follow Crête du Chardonnet (a somewhat aerial but well-marked path) to Col de Valmeinier. You'll pass under the north face of Roc de Valmeinier on the Maurienne slope to reach Col de la Chapelle. From here a fairly firm track leads to the south face of Mont Thabor, where you'll join the classic route, taking you up to the summit at 3,178m (4 hrs/4 hrs 30).
Return via the same route.
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