What kind of tourist attraction? The passages have points so narrow that they are dangerous in themselves, and a diver wearing a tank can’t get through them. It is mystery to me how they got where they are. Apparently it is recommended not to go into the caves - even into the developed areas with paths and handrails, during monsoon season, because of the danger of flooding.
Good points.
I remember in Vietnam the monsoon would hit at almost the same time every day and being out in the boonies, we planned for it. The leader of their group should have known about the heavy rains coming.
It has been a huge tourist attraction for many years.
All I know is what I read and that is was a tourist attraction of some sort.