From the car park at Cap de la Serre, by the GR101 as far as Col du Prat du Rey; first 2km by grit road, then a rough overgrown path up to the col. Louise stayed at the refuge while I climbed up steep grass to a damp beech wood, keeping close to the ridge line to the summit. Tiring return much the same way, in increasing sunshine as clouds broke and the mist cleared. SW breeze.