A YORK-based company is looking for brave volunteers to take part in a set of epic endurance challenges once lockdown is lifted. Rat Race Adventure Sports, based in Shipton by Beningbrough, is looking for hardy souls with a trailblazing spirit for a series of authentic, world-firsts . The challenges on offer include taking on unclimbed peaks in Greenland to an expedition on Bikini Atoll, infamous for the world’s first nuclear tests. As the expeditions are new they are not yet full-blown ‘events’ from the company, which is well-known for hosting the ‘Dirty Weekend’, ‘Sea to Summit’ and ‘Man vs Coast’ challenges.