The characteristic turquoise color is caused by the dissolution of limestone, which increases the water's calcium carbonate content.
The waterfall is situated at the edge of a deep gorge formed by erosion in the sedimentary rock layers typical of the Gyeongsang Supergroup.
The name 'Miin' translates to 'Beauty' or 'Beautiful Person' based on local folklore associated with the site.
The surrounding rock strata are primarily composed of red conglomerate, providing a vivid color contrast to the water.
The site is part of the Samcheok-si geological heritage zone, highlighting the unique water chemistry of the region.
Miin Falls is a 50-meter-tall waterfall located in a deep valley, distinct for its milky turquoise water caused by high concentrations of dissolved limestone minerals. The waterfall sits within the Hwaseon-gul valley system and is fed by the Tong-ri basin streams. Access requires a trek down a steep, winding trail that traverses dense forest terrain. The mineral-rich water creates a dramatic color contrast against the surrounding red conglomerate rock formations. It is a geological site that showcases the sedimentary characteristics of the Samcheok region. The trail leading to the waterfall is approximately 300 to 400 meters long, involving significant elevation changes.
The viewing platform at the base of the trail provides a head-on view of the falls and the turquoise pool.
Wear sturdy, closed-toe hiking shoes as the path is steep, often slippery, and can be muddy.
Bring a water bottle as there are no facilities or vending machines along the descent to the waterfall.
Check local weather forecasts beforehand, as heavy rain can make the trail hazardous or lead to temporary area closures.
Attempting the hike in flip-flops or open-toed sandals, and visiting during heavy rainfall or typhoon season.
The trail may be closed during severe weather conditions or landslide risks; verify trail status at the entrance sign.
Stick to the marked trail to prevent erosion; do not swim in the water as it is a protected geological site.