The park is renowned as a primary habitat for the Formosan firefly, with populations peaking during the spring and summer breeding seasons.
The three waterfalls within the park are fed by the same water source, the Yuantan Stream, which carved these distinct drops through the terrain.
It is a key site for observing the 'Green-banded swallowtail' butterfly due to the abundance of host plants within the wetland environment.
The park was designed to facilitate ecological education, featuring interpretive signage explaining the relationship between the stream, local wildlife, and forest cover.
The site experiences high humidity levels year-round, which contributes to the lush moss and fern growth covering the canyon walls.
Yuantan Ecological Park is a protected natural wetland area situated within the Alishan National Scenic Area at an elevation of approximately 1,000 meters. The park features a well-maintained loop trail system that connects three primary waterfalls: Yuantan, Xianghu, and Yunpan. The topography is dominated by moist, temperate forest ecosystems supporting high biodiversity, including over 30 species of butterflies and diverse frog populations. A wooden observation deck provides vantage points over the waterfalls and the surrounding stream ecosystem. The park acts as a riparian corridor, which is essential for the local water-dependent flora and fauna. Visitors can observe geologically significant rock formations sculpted by the Yuantan Stream. The park infrastructure includes accessible boardwalks that minimize ecological disruption while allowing for forest immersion.
The mid-level observation bridge facing the Yuantan Waterfall.
Wear footwear with good grip, as the wooden boardwalks and stone stairs can become extremely slippery when wet.
Bring a rain shell or umbrella, as the mountainous terrain causes frequent, localized afternoon mist and light rainfall.
Carry a small towel to wipe off dew or moisture from the observation railings.
Attempting to climb off-trail to reach the base of the falls, as the rocks are unstable and moss-covered.
Stay on marked trails to protect sensitive wetland flora; do not feed wildlife or collect plant samples.
