Bridges are caused by an erosion process, wherein meandering water gradually erodes away a hole in a stone wall. Once the water can flow through the hole, the pressure at that location quickly carves a larger natural entrance. One of the bridges can be seen on the left. On the right, the previous trail of the waterway can be seen.
In order to get a closer look at one of the bridges, we went down an extremely steep trail, which included ladders at several points. My mother was not in a mood for such adventure and only agreed to try the ladder after great pressure exerted by my father. The famous ladder descent appears above. (Blurry because I had little time to focus the camera.)
This is the view that we saw from below. Fortunately, my mother and sister didn't make the entire descent, because it started drizzling. At that stage, my father and I made a quick dash up the first 200 vertical feet, where we knew that we could find shelter from any possible thunderstorm under an overhanging cliff.