The lake is a primary site for the conservation of the Critically Endangered Eriocaulon taichungense (Formosan pipewort).
The lake occupies a small valley floor and relies on mountain runoff for its water levels.
The adjacent Xinshan peak reaches an elevation of approximately 499 meters.
The site was historically known as 'Dream Lake' due to the frequent fog that obscures the water surface.
The coffee shop on-site serves as the primary maintenance entity for the surrounding trail upkeep.
Xinshan Menghu is a privately owned alpine lake located in the mountains of the Xizhi District, characterized by its emerald-green waters and surrounding secondary forest. The lake serves as a habitat for the endangered Formosan pipewort, an aquatic plant endemic to Taiwan. It was originally an irrigation reservoir constructed to support local agricultural needs. The area features a loop trail that leads to the adjacent Xinshan mountain ridge, known for its steep rock faces and panoramic views. The lake area is managed by a private coffee house that maintains the site's environment. Access to the lake involves a brief, moderate hike from the nearby parking area. It is frequently noted for its morning mist, which often dissipates by midday.
The wooden dock extending into the lake provides the most iconic view of the mirror-like water and reflections of the forest.
Wear hiking boots with good grip if you plan to continue past the lake to the Xinshan mountain summit.
Visit during a weekday to avoid significant crowding from wedding photography groups.
Bring insect repellent as the dense forest area is prone to mosquitoes.
Do not attempt the Xinshan summit trail during or immediately after rainfall due to extremely slippery rock sections.
The site occasionally closes during periods of extreme weather or trail maintenance; check the official Facebook page before heading to the mountain.
Maintain silence to protect local wildlife, pack out all trash as there are no bins, and do not disturb the aquatic vegetation.