Hai Duong, April 8 -- The northern province of Hai Duong saw a sharp increase in the number of tourist arrivals to its scenic spots and historical relic sites during the Hung Kings' Commemoration Day holiday from April 5-7. The Con Son - Kiep Bac special national heritage site in Chi Linh city welcomed some 17,600 visitors, a remarkable 6.5-fold rise compared to the same period in 2024. According to deputy head of the relic site management board Nguyen Van Cuong, alongside domestic tourists, the destination also hosted international delegations. Earlier, the Con Son - Kiep Bac spring festival received 68,000 tourists, a year-on-year increase of 42%. The growing number of visitors to this special national heritage site since the beginning ...