Travel writer takes aim at crowdfunding once in a lifetime sponsored events.

Lots of people are raising money these days for charity by completing various challenges. People are completing fun runs, marathons and cycles, or getting their chests waxed - and asking people to sponsor them for a special cause. Then there are those more adventurous people who plan once in a lifetime sponsored events like hiking the Great Wall of China, Climbing Kilimanjaro or trekking through the Sahara Desert. But do you ever see their crowd funding pages and think "Hang on, pay for your own holiday!" before you feel guilty and pledge £20?! Or is this simply another way to encourage people to raise money for good causes? Vinny got the views of commentators Daniel Barclay and Emma Woolf.