Americans, Vietnamese book most Son Doong tours for 2023

Nearly 80% of bookings for tours to the world’s largest cave Son Doong for next year have come from Vietnamese and American tourists, according to travel agency Oxalis.

Source: VNExpress International,
https://e.vnexpress.net/news/travel/americans-vietnamese-book-most-son-doong-tours-for-2023-4533058.html