|Athletes compete in the 2018 Tuan Chau-Ha Long Beach Volleyball World Tour. (Photo: tuanchau-halong.com.vn)
Twenty-eight teams from 13 countries and territories including Austria, Denmark, Japan, Thailand and the US will join hosts Vietnam.
It is a sharp increase of participants compared to last year, which involved 18 teams.
A Japanese team won the title in 2018 along with a prize of 20,000 USD.
The tour is an annual event held by the provincial sports department and the National Sports Administration.
All matches will be aired live on VTV6.