1.yes, they are
2.they are going to visit Ha Long first
3.they are going to stay in HCM for a week
4.they are going to visit 8 places(mk tách riêng ra nha , nếu bn tính mỗi Hạ Long, HN , Huế, HCM, Nha trang cx đc)
5.they are going to visit the citadel