Blue Crystal Ice Cave
© Francesco Bergamaschi/Moment/Getty Images
Ice caves occur when freezing-cold underground chambers are permeated by water, which accumulates as ice on the stone surfaces. On the other hand, what we're seeing here is a glacier cave formed within solid ice, its only stone support being the bedrock below. Tunneling under the solid ice of Switzerland's Morteratsch Glacier, this particular cave is one of several here that make popular attractions winter after winter. But a tour of the caves is never the same twice, as they melt and shift during the off-season summer months.
正在消融的奇观
冰晶洞穴
随浮冰而游移
在狭地水域中划行
谈谈蓝色
正在消退的巨大冰川
一只冷酷的食肉动物
冰山诞生之地
