Beautiful nature reserves that are not national parks
Why are the mysterious limestone formations of Ha Long Bay and Ninh Binh (Tam Coc & Trang An) not included in the overview above? These nature reserves are not officially designated as national parks. Halong Bay is on the Unesco World Heritage List (since 1994), just like Trang An (since 2016). In addition, Halong Bay is one of the New 7 Wonders of the World in the Nature category.