It's like weird Extreme Sports
3. Ice climbing
Rock climbing’s slipperier cousin attracts ascending adrenalin junkies who spend hours or days with their cheeks glued to a glacier - tethered only by crampons, picks and a rope. For many the thrill of not skidding off a mountainside just doesn’t cut it - the frozen waterfalls of the Canadian Rockies and Norway are where it’s at. Always vertical, which requires serious Spiderman skills and specialized tools, waterfall ice also has a tendency to ‘dinner plate’ - smashing to smithereens after one too many lame swings of an ice pick. Hanging ice waterfalls, however, are the most suicidal because they’re not solid. A fusion of giant icicles without a base support - one wrong move and they’ll snap in a second.