Close to the Lailai erosion platforms, Sijiaoku platform is a viewpoint to see the coast. In the north the Sandiaojiao Cape acts as a barrier, while from the east side the Kuroshio Current passes by, offering a suitable environment for the growth of algae and plankton, thus breeding a flourishing body of fish. However, this huge expanse of erosion platforms still sees many changes. There are wall-like volcanic rock veins, deep erosion ditches and geometric line conformations very similar to washing boards. These landforms are all remnants of nature’s footsteps and orogeny (mountain generating). The Lailai stratum belongs to the Datongshan Formation, formed of intercalating layers of thick-bedded sandstone and shale. Lava seeped into these intercalations and cooled down to form rock veins, while erosion ate away at the softer sandstone, leaving behind the harder shale, which form the rock formations that we see today.