Pak Tam Chung Nature Trail is built along the river, offering views of fresh and sea water coming together to create unique habitats. At low tide, fiddler crabs and mudskippers appear on the mud surface of mangroves. Plants like Longans, Night-blooming Cereus, and Sandpaper Vine, which were used for cleaning pots in the old days, are seen by the sides. At the finishing point of the level trail is Sheung Yiu Folk Museum, which introduces the history of Sheung Yiu Village. Built in the late 19th century, Sheung Yiu Village was inhabited by Hakka villagers who lived on producing bricks and tiles by burning lime. With the advent of the cement industry, cement took the place of lime, causing the villagers to move away to urban areas to earn a living. In the 1960s, the entire village was abandoned until 1984, when the village was opened as Sheung Yiu Folk Museum to display Sheung Yiu Village and the lime kiln, both of which are now declared monuments, for public viewing.