In the third leg, the five pairs are challenged to race fromthe island checkpoint of Sanya to the mysterious Shangri-La, acity sitting on the edge of the Tibetan plateau towards thefoothills of the Himalayas. As race leaders Elizabeth andLetitia check out, ex-married couple Yin and Gaz have onlyjust made it in, having been stuck on the mainland unable tocross. With an almighty 44-hour gap between first and lastplace, Yin and Gaz know they have a mountain to climb toremain in the race, but are determined to come out for legthree fighting