The park is situated on a former landfill that operated from 1978 to 1993, containing over 90 million tons of waste.
The park utilizes a methane gas collection system that pipes captured gas from underground waste deposits to nearby heating facilities.
The site features a specific habitat zone dedicated to native Korean plants to encourage the return of local wildlife.
There are no large trees in the main field area to maintain the aesthetic of the sweeping grass plains.
The park serves as a migration stop for various bird species due to its high elevation and proximity to the river.
Haneul Park is a high-altitude ecological park built on a reclaimed landfill site that serves as the highest point within the World Cup Park complex. It is characterized by vast fields of silver grass (Miscanthus sinensis) that turn golden every autumn. The park is part of a land stabilization project that converted a former waste mountain into a green space. Infrastructure includes five giant wind turbines that generate electricity for the park's facilities. Visitors access the park via a steep wooden staircase or a dedicated shuttle vehicle. The site offers panoramic views of the Han River, N Seoul Tower, and the surrounding Seoul cityscape. Vegetation is managed to balance native wildflowers with the iconic ornamental grasses.
The central observation deck overlooking the Han River at sunset.
Bring water and snacks as there are minimal food facilities inside the park area.
Apply sunscreen and bring headgear, as the grass fields offer almost no natural shade.
Walk the perimeter trail for a quieter experience away from the main observation platforms.
Do not rely on finding extensive shaded seating during midday; bring personal protection from the sun.
The park is subject to brief closures during extreme weather events; paths may be icy in mid-winter.
Stay on marked trails to protect the fragile soil and grass ecosystems; do not pick the plants.