Videos from Vietnam #5 : Phong Nha to Hanoi The stunning limestone cliffs around Phong Nha and the remote homestays in Pu Luong Nature Reserve were some of the highlights of our six week trip. Related posts: Videos from Vietnam #4 : Hoi An to Phong Nha The Blade Diaries #5 – Phong Nha to Hanoi Videos from Vietnam : Cat Ba Island Videos from Vietnam #2 : Dalat to Hoi An