An autumn break in the French mountain town of Saint-Gervais-Les-Bains offers thermal treatments and glorious walking trails before the winter ski crowds descend

Mont Blanc is hiding behind the clouds, but the Aiguille du Midi spears the sky above a mountainside ablaze with russet, gold and tawny tones. The maples flare red; rowan trees are dusted with crimson berries.

Our little group has trundled up to Mont Lachat station (altitude: 2,115 metres) on the Tramway du Mont Blanc, the century-old cog railway that climbs improbably steep slopes from the French alpine town of Saint-Gervais-les-Bains. Operational since 1909, the railway was once intended to reach the 4,809-metre summit of Mont Blanc, but war, glacial terrain and waning funds put an end to that ambition. But even from Mont Lachat, the view is a showstopper. On one side, the Bionnassay Glacier slips scenically down the slope, a buzzard soaring over the milky-green glacial lake at its base, while on the other the Chamonix valley basks in soft autumnal sunshine.