Welcome to Shifen Waterfall Park, in Pingxi District, New Taipei City, in the hills of northeastern Taiwan. Here the upper Keelung River, the largest and longest river in northern Taiwan, drops over a rocky ledge in one wide sheet of white water. The falls are about 20 metres high and 40 metres wide, which makes them the broadest waterfall in Taiwan. When the water hits the deep pool below, it throws up mist that often drifts around the falls like a veil. The park sits right beside Shifen Old Street, so you can go from the sound of trains to the roar of water in a short walk. Over the next few minutes we will look at why the falls look the way they do, how a coal railway brought visitors to this valley, and what to watch for along the bridges and paths nearby. Let's start with the water itself.