In September 2018, Branson took part in his fourth Virgin Strive Challenge, where he and a core team travelled more than 2,000 km from Cagliari in Sardinia to the summit of Mont Blanc entirely under human and sail power. It was a gruelling month-long challenge where they hiked, biked and kayaked across Europe and had a near-miss on Mont Blanc when a rockfall rained down on them as they crossed the perilous Gouter Couloir. They raised more than £1m for Holly and Sam Branson's charity Big Change, which supports young people.