On 1 June, take part in the Challenge Mobilité by opting for an environmentally friendly way to get to work – on foot, in a carpool, by bike or on public transport – it’s entirely up to you. The challenge is an initiative of the Auvergne-Rhône-Alpes region where the French parts of the CERN site are located.

So, on 1 June, why not hop on your bike, don your running shoes or consult the bus timetable? And if you want to go a step further, try out some of the highly original extra challenges suggested here (in French only).