六月的琼州海峡，骄阳肆虐，热浪滚滚。一艘木船从徐闻悄然启航，迎着从南中国海深处吹来的风，迎着海风裹挟而来的波浪，行进在蓝天碧海之间。船头站着一位老人。他身穿一件半新长衫，佝偻着背，拄着拐杖，苍白的发须在海风中飘动、颤抖。他，就是晚年的苏武，那个在人们心目? Qiongzhou Strait in June, the sun rages, heat waves billow. A wooden boat quietly set off from Xuwen, facing the wind blowing from the depths of the South China Sea, facing the wave bound by the sea breeze, marching between the blue sky and blue sea. The bow stood an old man. He wore a half-length gown, stomping back, leaning on his cane, pale hair whispering and trembling in the sea breeze. He is Su Wu in his later years, that in the minds of people?