Like a traveler on a cultural-ecological tour on the pages of a book, the reader can stop, follow and enjoy the landscapes, historical and cultural relics, and economic activities down to every detail of each location, in a series of 12 selected ports described and recorded from 19 estuaries, located along the North Central Coast, including 4 ports in Thanh Hoa province, 3 ports in Nghe An province and 5 ports in Ha Tinh province.