Currently, entry fees to Son Doong cost US$660 per person, according to major tour operator Oxalis Adventure, while entry tickets to Phong Nha Cave cost US$5.24 per person and Hamada Valley-Tra Ang Cave, US$8.8.
The central province's authorities also decided to reduce by 20 % entry tickets to popular tourist destinations like Phong Nha-Tien Son, Mooc Stream eco-tourism site, Thien Duong Cave, and Chay River-Dark Cave tourist site.
Quang Binh welcomed 540,000 visitors in the first half of 2021, down 41 % year-on-year. The company said tours to Son Doong for 2021 are fully booked and that the cave would be closed to tourists from September until the year-end.