The park is located on a major alluvial fan, where river sediment has created nutrient-rich, soft-ground habitats.
It was designated as an Important Bird Area (IBA) by BirdLife International due to the high density of migratory species.
The park's location marks the transition zone between freshwater river environments and the saltwater influence of the nearby Taiwan Strait.
It is one of the few remaining significant natural wetlands within the Taipei metropolitan basin.
The site includes a designated 'wildlife sanctuary' zone that is strictly closed to human entry to protect breeding grounds.
Guandu Nature Park is a 57-hectare wetland ecosystem situated at the confluence of the Tamsui and Keelung Rivers in Taipei. It serves as a critical stopover for migratory birds traversing the East Asian-Australasian Flyway. The park consists of four distinct habitat zones: mudflats, ponds, marshes, and secondary forests. Visitors access the park through a nature center that overlooks the main marsh area and provides high-powered telescopes for bird observation. It is managed by the Wild Bird Society of Taipei under a government contract. The area functions as a biological buffer, filtering urban runoff before it enters the river estuary. It hosts a significant population of the rare black-faced spoonbill during winter months. Walking trails include raised wooden boardwalks that allow traversal over sensitive wetlands without disturbing the wildlife. The park maintains an indoor exhibition hall detailing the local geological and ecological history.
The elevated observation deck within the Nature Center, providing an expansive view over the marshland and the distant Guanyin Mountain.
Bring high-quality binoculars or a camera with a telephoto lens, as wildlife observation is the primary activity.
Wear light, breathable clothing and insect repellent, as mosquitoes are prevalent in the wetland environment.
Check the visitor center's daily bird-sighting board upon entry to see which species have been spotted that morning.
Attempting to walk through the mudflats or off-trail areas, which are protected and potentially unstable.
Closed on Mondays.
Stay on marked trails at all times; noise levels must be kept low; do not feed wildlife; flash photography is prohibited near bird observation hides.