South of Hanoi, Ninh Binh province is blessed with natural beauty, cultural sights and the Cuc Phuong National Park. Highlights include boat trips amid karst landscapes at Tam Coc and the Unesco World Heritage-listed Trang An Grottoes. Note that the Ninh Binh region is very popular with domestic travellers, and many attractions are heavily commercialised. Expect hawkers and a degree of hassle at the main sights.