The lake's water level remains constant throughout the year regardless of rainfall, a phenomenon attributed to its unique geological basin.
Tianchi is situated on the watershed divide between the Dajia River and the Daan River systems.
The surrounding forests feature ancient Formosan cypress trees.
Visitors often walk the perimeter of the lake three times in a clockwise direction, a practice associated with meditative focus in local tradition.
Fushoushan Farm Tianchi is a high-altitude alpine lake situated at an elevation of approximately 2,580 meters within the Central Mountain Range. The lake is naturally formed and does not dry up despite its exposure to the elements at such an altitude. It is located at the highest point of the Fushoushan Farm, accessible via a perimeter trail. The surrounding landscape features dense conifer forests and is often shrouded in mist. The area serves as a focal point for visitors traveling through the Central Cross-Island Highway corridor. The site is part of the broader Fushoushan agricultural management area, which spans significant elevation gradients.
The wooden viewing platform overlooking the lake, which provides a clear reflection of the sky and trees.
Bring layers as the high altitude causes significant temperature drops compared to the base of the farm.
Prepare for potential altitude sickness if sensitive, as the site is at a high elevation.
Wear shoes with good grip, as the walking path around the lake can be damp or slippery.
Attempting to swim or enter the water, which is prohibited; expecting flat, urban-style walking paths.
Access may be restricted during severe weather conditions, such as heavy snow or typhoon warnings.
Stay on marked trails to protect the surrounding alpine vegetation; maintain a quiet demeanor consistent with the reflective atmosphere.