The cylindrical holes are formed through mechanical erosion by pebbles caught in circular water currents.
The Shiding district is geologically notable for its exposed Miocene-era sedimentary rock formations.
These potholes are part of a larger river basin drainage system that experiences high flow volumes during monsoon seasons.
The Wormhole is a natural geological formation located along the Shiding River in New Taipei City, Taiwan. This site is defined by a series of cylindrical potholes carved into the riverbed's sedimentary rock by centuries of swirling water and trapped sediment. The area features exposed sandstone and shale layers that demonstrate active stream erosion processes. Visitors can observe the river's clear waters flowing through these deep, circular cavities. The site is a significant example of river morphology within the Shiding district's rugged landscape.
The elevated ridge overlooking the river bend provides a wide-angle view of the concentrated pothole clusters.
Wear sturdy footwear with good grip, as the riverside rocks can be slippery and uneven.
Check local weather reports for recent heavy rainfall, as the river level can rise rapidly in this mountainous region.
Bring a polarizing filter for your camera to better capture the depths of the rock formations beneath the water's surface.
Do not attempt to climb or swim in the river during or immediately after heavy rainfall due to the risk of flash flooding.
Avoid walking directly inside the fragile pothole structures to prevent erosion damage; stay on designated natural trails.
