Opening ceremony of 2021 National Tourism Year slated for April 20 16:36 | 08/04/2021 A highlight of the 2021 National Tourism Year will be the opening ceremony slated for April 20, which is expected to see the participation of about 2,000 guests and 7,600 local people and visitors, heard a press conference on the event held in the northern province of Ninh Binh on April 6. At the press conference (Photo: VNA) Ninh Binh - A highlight of the 2021 National Tourism Year will be the opening ceremony slated for April 20, which is expected to see the participation of about 2,000 guests and 7,600 local people and visitors, heard a press conference on the event held in the northern province of Ninh Binh on April 6.