IT’S A CRAZY PLAN: TO RIDE DOWN THE WORLD’S LONGEST DESCENT FROM THE ROOF OF THE ANDES AT 6890M TO THE PACIFIC COAST OF CHILE – 300KM IN ALL. BUT TO EVEN GET TO THE START LINE, JAMES LOWSLEY-WILLIAMS AND MARK BEAUMONT NEED TO SCALE THE WORLD’S HIGHEST ACTIVE VOLCANO, OJOS DEL SALADO, WITH THEIR BIKES STRAPPED TO THEIR BACKS.