On the afternoon of April 30th, many people gathered in the area around the Son Tay Ancient Citadel and experienced some cultural activities in order to wait for the opening ceremony of the Son Tay - Xu Doai Tourism Year and the pedestrian zone in the evening of the same day. At 20:00, the solemn opening ceremony took place with many performances which areexciting, eye-catching and imbued with local cultural identity. As the fourth pedestrian street of Hanoi, Son Tay ancient citadel pedestrian zone is expected to promote the advantages of this historical site while creating a community space that meets the demands of local people and visitors. Furthermore, this is an opportunity to promote the development of trade, service and tourism activities, which contributes to the socio-economic growth./.