Very beautiful place, traveling on the river is very romantic, going deep inside Phong Nha cave is super beautiful and magical, the water in the cave is cool, the stalactites emit a very beautiful glitter, I really like it, it's very beautiful. Suitable for groups and families who want to explore nature, however inside there are many photographers coaxing customers to take photos even though they know they only do it to make a living, but it is quite unsightly and not beautiful. In the eyes of tourists, I saw a tourist being shouted at for not taking pictures and having to follow her for a very long distance