This is the northern vietnam chapter from lonely planet's vietnam guide book'. '.strtoupper('t')his is vietnam's big sky country a place of rippling mountains, cascading rice terraces and the winnowed out karst topography for which the region is famed'. '.strtoupper('i')f you're up for some road tripping, this is the place to do it'. '.strtoupper('k')ayak within the karsts, into lagoons and hidden grottoes in halong bay maps twist and turn your way across scenic mountain passes in ha giang province on the north's greatest road trip transport dive into northern vietnam's action adventure centre, cat ba island restaurants accommodation coverage includes northeast vietnam, ba be national park, haiphong, halong bay, bai tu long bay, mong cai the chinese border, northwest vietnam, hoa binh, mai chau, son la, dien bien phu, muong te na hu, sinho, sapa, lao cai, bac ha, ha giang province.