In some caves the oldest ice dates back thousands of years. HOCHSCHNEID (AUSTRIA) In a cave east of Salzburg, paleoclimatologist Tanguy Racine of the University of Innsbruck picks twigs and pine ...

The warning isn’t enough to put me off. I take a minibus from Werfen train station to the Eisriesenwelt ice caves visitor centre, where a stiff, 20-minute hike leads up to a cable car. I get out ...

It’s a quick and easy stroll to the cross-topped viewpoint at Salzburg Hochthron (1853m). Memorable half-day hikes include the one to the Schellenberger ice caves over the border in Bavaria.

Last month images of the ice caves on Lake Superior went viral. The lake had frozen over to its greatest extent in decades, and for the first time in five years the sea caves of Apostle Islands ...