The weather window was closing on crossing the Great Snowy Mountains.He worked on a new timetable, new safety protocols and fitting a satellite phone and tent into his bulging rucksack.

• 跨越大雪山的适宜天气就要过去了，他正在制定一个新的时间表、新的安全草案，并把卫星手机与帐蓬装进鼓鼓囊囊的背包。