งวด 1/6/62สูตร2ตัว บนล่างแม่นๆ พี่น้อง สูตร 4 อย่าพลาด
A little known town just south of Hanoi Dong Hoi is quickly becoming a must visit town. Not for the town itself but located just a short drive away are two recently discovered caves, Paradise cave and Son Doong Cave. Son Doong Cave is now the largest cave in the world. There are also remote and pristine beaches where you can unwind and enjoy this stunning location.
from: http://ezinearticles.com/?The-Famous-Caves-of-Dong-Hoi,-Vietnam&id=7940087
