The Fireflies Tour is a beast of a charity cycling event, taking its riders up and down momentous Cols and legendary Tour de France climbs during the nine-day journey from the Swiss Alps to Cannes in France. It covers a crazy 1,000km distance and a leg-busting 26,000 metres of vertical climbing. All in all, it’s pretty epic and takes a serious level of badassery, grit and fitness to complete.