Rare, short-lived ice caves form on the Morteratsch Glacier (Vadret da Morteratsch) in Switzerland’s Engadin valley, carved by meltwater and warm air currents during freezing winter months. These fleeting, brilliant blue formations are accessible via a, relatively easy, roughly one-hour hike from the Morteratsch train station, though they are dangerous and subject to melting away by global … Continue reading One of nature’s most astonishing sights – Morteratsch Glacier Cave