Son Doong Cave Expedition 2025. This incredible cave was only explored in 2009/2010 by the british cave research association. Son doong cave is in the heart of the phong nha ke bang national park in quang binh province.

This incredible son doong cave expedition of 4 days 3 nights will give you a wonderful chance to explore the world’s largest cave and exit via the great wall of vietnam. I will be flying to dong hoi airport from bkk having spent 6 weeks prior in thailand mostly training.