https://l450v.alamy.com/450v/r922ne/climbers-descend-ladders-leading-down-onto-the-mer-de-glace-from-near-the-montenvers-railway-station-the-railway-was-built-in-victorian-times-to-take-tourists-up-to-the-glacier-it-has-subsequently-thinned-150-meters-since-1820-and-retreated-by-2300-metres-in-order-to-access-the-glacier-you-now-have-to-climb-down-over-100-metres-on-ladders-r922ne.jpg