Korina Duffy. Photo: Salvatore Di Martino. One of the tasks during the Irish Heart Foundation's Arctic Challenge will involve a gruelling pulk (equipment) pulling trek across a frozen lake.

Jose Trejo, Sechu Lopez, and Francisco Mira are planning a 760km ski and pulk expedition from Resolute to Gjoa Haven in the Canadian Arctic. They plan to pull 120kg sleds and are budgeting around ...