Oxalis Company Limited Archives - Môi trường du lịch Việt Nam

New discoveries in underground river inside Son Doong announced

10/04/2019

With the new discoveries during the diving expedition in the underground river inside Son Doong – the world’s largest cave, Son Doong Cave becomes a

Exploring underground river inside Son Doong

04/04/2019

The Phong Nha – Ke Bang National Park Management Board cooperated with Oxalis Company Limited to hold a press conference in Quang Binh province, on