This is the nice place for us to do caving.
Amazing!
Do you see a long hair pregnant woman made from limestone?
We were taking most challenging trek, which is trek 4. Sometime both hands and legs are not enough for us to pass through the slope, butt is needed.
This was what would happen after crossing the slope with our butt.
We stopped half way of the trek. This was the only place that we could see the sky.
Continued our trek after taking a short break. This was how we did when crossing the underground river.
Taking photo when the traffic in front was jam.
It was so nice to lie down on the cold water for our last group photo.