Gliding towards the mountains by rail can make flying to a ski resort feel unnecessarily stressful. A journey that looks quick on paper often becomes an all-day ordeal once airport queues, crowded cabins and lengthy road transfers are added in. When calculated from door to door, a daytime train journey from London can rival flying for speed, while an overnight service can leave you with more valuable time on the snow. As Alpine glaciers continue to lose snow cover in a warming climate,