Nha Trang welcomed between 25,000 and 30,000 tourists per day during the period, said the local tourism sector, adding that the number of arrivals to the coastal city were three or four times higher than normal days.

On May 1, Nha Trang City also received over 1,600 passengers and crew on board the Bahamas-flagged Legend of the Sea.

The world heritage site of Halong Bay the northern province of Quang Ninh saw some 150,000 tourists during the week from April 25-May 2.

Ha Quang Long, Deputy Director of the Quang Ninh provincial Department of Culture, Sports and Tousim, said the surge in visitor number is partly attributable to the Halong Tourism Festival which featured a wide range of activities.

Popular beaches such as Do Son in the northern port city of Haiphong, Sam Son in central Thanh Hoa Province, Cua Lo in central Nghe An Province, also welcomed large numbers of visitors who wanted to make the most of the long holiday.

The tourists crowd have sent service charges up sharply and caused traffic jams in many major roads.