The cache is on the bike trail from Songshan to Tamsui.
Starting form the gz, you are now entering Guandu Nature Park (關渡自然公園). The park spans over an area of 57 hectares in a low-laying area of Taipei Basin at the junction of Keelung River and Tamsui River. It is divided into four areas, namely main area, core reserve area, outdoor observational area and sustainable management area. The park primarily consists of freshwater ponds, brackish ponds, swamps, rice fields and mounds.
The park is home to more than 830 animal species and around 230 bird species have been observed in the area. Here you can see some migratory birds, fiddler crabs, and of course, the mudskippers in the vibrant mangrove forest wetland. This wetland has been categorized as Important Bird Areaby BirdLife International since 2004.