‘I’m walking, skiing and canoeing from the Russian Arctic all the way to Istanbul’

Explorer Charlie Walker is traversing the length of the Ural mountains as part of a triathlon adventure – and a bid to understand the nature of the east-west divide

The thrill of ice canoeing on Canada’s St Lawrence river

Quebec’s semi-frozen St Lawrence river is the fearsome setting for a form of canoe racing that involves going over, as well as around, giant hunks of ice.