Hanoi, Feb. 23 -- During the nine-day Lunar New Year (Tet) holiday, Vietnam's tourism sector served an estimated 14 million visitors, up 12% year-on-year, according to the Vietnam National Authority of Tourism (VNAT) under the Ministry of Culture, Sports and Tourism. Several key destinations recorded a sharp rise in international arrivals. Da Nang received an estimated 510,000 foreign visitors, up 32% year-on-year; Hue welcomed approximately 238,200, a surge of 207%; Hanoi saw 217,000 international arrivals, an increase of 55%; and Ho Chi Minh City attracted around 170,000, up 51.7%. Khanh Hoa and An Giang also reported growth of between 23% and 28% in overseas visitor numbers. In the domestic market, bookings for tours within the country...