The lake was originally constructed in 1956 specifically for agricultural irrigation purposes.
It is an 'off-stream' reservoir, meaning it does not rely on a direct river flow for its primary water source.
The reservoir underwent a massive multi-year sediment removal and ecological restoration project completed in the 2010s.
The water surface area spans approximately 10 hectares when at full capacity.
It is one of the few designated reservoir parks in Taiwan that permits limited recreational walking and cycling on its perimeter.
The lake's depth fluctuates significantly based on seasonal irrigation demands and regional rainfall patterns.
Green Grass Lake is a man-made irrigation reservoir situated in the East District of Hsinchu City, Taiwan. The lake serves as a primary water source for local agriculture while functioning as a recreation area. Its geographical location provides a distinct backdrop of the surrounding foothills. The site underwent significant ecological restoration to improve water quality and landscape aesthetics. A paved perimeter path surrounds the reservoir, facilitating pedestrian access to the water's edge. The lake area is maintained as a public park with designated viewing platforms. It is situated within a valley, which contributes to its calm water surface conditions.
The viewing platform near the northern entrance, which offers an unobstructed view of the water reflecting the mountains.
Bring sun protection, as the perimeter path offers limited shade in several sections.
Visit during the shoulder seasons to avoid the humidity of the peak summer months.
Walk the full loop to observe the varying perspectives of the surrounding mountain landscape.
Attempting to swim or fish in the reservoir, as both activities are strictly prohibited for safety and water quality reasons.
Maintain noise levels to respect the surrounding residential neighborhood; stay on marked paths to protect restored vegetation.
