The reservoir was repurposed into a recreational park in 2007 after industrial water usage demands changed.
The park houses miniature versions of iconic religious buildings, designed to offer spiritual reflection for visitors of all faiths.
It contains a specialized 'starlight square' designed for night-time observation of constellations.
The walking path connects to the Seonam Reservoir's embankment, which remains a primary landmark of the site's original engineering.
Seonam Lake Park was originally constructed as an agricultural reservoir in 1964 to supply water to the nearby industrial complex in Ulsan. It features a 4-kilometer long walking trail that encircles the entire reservoir. The park is home to the world's smallest religious structures, including a miniature Buddhist temple, a church, and a chapel, all built on a scale small enough to fit a single person. Various ecological habitats are maintained throughout the park, including lotus ponds and wild flower gardens. The park functions as a key ecological corridor for local bird species and migratory waterbirds. A deck path installed over the water provides direct views of the reservoir's surface and aquatic life. The site spans a significant portion of Nam-gu, acting as a green buffer zone between urban Ulsan and the surrounding hills.
The wooden deck path during golden hour, facing the miniature temple structures.
Bring comfortable walking shoes to manage the 4km circular loop.
Carry insect repellent if visiting during humid summer evenings.
Check the central visitor plaza for seasonal cultural event notices.
Attempting to swim or fish in the reservoir, as it is strictly prohibited to maintain water quality.
Maintain noise levels near the miniature religious structures; refrain from littering near the water collection areas.