Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Haiphong iguta riri pamhenderekedzo yegungwa riri pamuromo peRwizi rweCấm (Rwizi rweCấm), kuchamhembe kwakadziva kumabvazuva kwemhenderekedzo yeVietnam, 120 km kumabvazuva kweHanoi. Bhiriji reBính rinoyambuka Cam uye rinobatanidza guta neDunhu reThủy Nguyên. Iine nzvimbo yakasikwa yakazara ye152,318.49ha (2001). Inoganhurana neQuảng Ninh Province kuchamhembe, Hải Dương Province kumadokero, Thái Bình Province kumaodzanyemba, uye Gulf of Tonkin kumabvazuva. Chitsuwa cheBach Long Vi, Chitsuwa cheCat Ba uye zviwi zveLong Châu, zviri muGulf, zvinotarisirwawo sechikamu cheguta.  Mubvunzo: Haiphong iri kupi?
muromo weRwizi rweCấm