The trail was originally constructed in 1984 to facilitate the construction of a hydroelectric dam, a project that was eventually canceled.
The Water Curtain Cave was formed accidentally when construction workers accidentally breached an underground spring while tunneling.
The tunnel sections are intentionally left unlit to maintain the natural cavern environment, requiring visitors to bring their own light sources.
The trail exhibits significant marble rock formations that are over 200 million years old, compressed by tectonic movement.
Due to the fragility of the cliffside, the trail is restricted to a specific capacity to prevent excessive vibration and geological stress.
The Baiyang Trail is a 2.1-kilometer-long path located within Taroko National Park, initially developed by Taiwan Power Company for hydroelectric project access. The route features seven tunnels carved through marble cliffs and crosses the Liwu River via a suspension bridge. The trail culminates at the Water Curtain Cave, where groundwater springs through cracks in the tunnel ceiling to create a natural waterfall. The walk is characterized by steep canyon walls and views of the river gorge. Because of its location in a high-risk geological zone, the trail is frequently subject to closures due to rockfalls or seismic activity. Visitors traverse diverse terrain, ranging from open cliff-side paths to enclosed tunnel sections.
The suspension bridge overlooking the deep gorge provides the most expansive view of the marble cliffs.
Bring a raincoat or waterproof jacket for the Water Curtain Cave, as you will get soaked passing through the waterfall.
Carry a high-powered flashlight or headlamp for the dark tunnel sections.
Wear sturdy, non-slip footwear as the tunnel floors are constantly wet and can be slippery.
Do not attempt to visit immediately after heavy rainfall, as the trail is prone to landslides and will likely be closed.
Frequently closed during typhoon season or following significant seismic activity; check Taroko National Park official updates before travel.
Do not wander off marked paths due to extreme rockfall risks; respect safety barriers.
