Actually, it goes deeper than that, they still have many new cavern area left to be open to the public. The natural gift was spectacular, but what the local government did to the atmosphere is terrible, particularly the lighting and the trail. I can't find any good angle without exposing to the horrific 'color' fluorecent light. It is so bad i turned this picture to black and white and then add in color filter back on. But as you can see, the form of cavern itself is beautiful.