By car from Saint Gervais les Bains take the direction Les Contamines Montjoie about 3 kilometers from Saint Gervais, on your left cross the village of Bionnay then again on the left to the chapel climb towards Bionnassay for 4 kilometers (mountain road) to the Crozat car park. From the car park count 15 minutes walk towards Col de Voza.
Access possible to the refuge by 4x4 (prohibited between 09:00 and 18:00 only in July and August).