The lake formed in 1925 after an accidental breakthrough of underground water during chalk excavation operations.
Prior to the flood, the site was part of the 'Cementownia Stern' industrial facility.
The maximum depth of the lake is approximately 18 meters.
The water's high lime concentration inhibits the development of typical aquatic vegetation, resulting in high water clarity.
The lake basin is situated at an elevation of approximately 20 meters above sea level, surrounded by hills reaching up to 100 meters.
Traces of the former mine's infrastructure, including concrete foundations, are still visible around the perimeter.
The site is a popular habitat for various bat species, which hibernate in the nearby disused mine tunnels.
Emerald Lake, known locally as Szmaragdowe Lake, is an artificial reservoir created by the flooding of a former chalk mine. Located within the Puszcza Bukowa forest landscape park, the lake is fed by underground springs and rainwater. The distinctive turquoise color is caused by the high calcium carbonate content of the water. The surrounding area features steep slopes and historical industrial relics from the 19th and early 20th centuries. Visitors can access a network of trails that lead to viewpoints overlooking the basin. The site remains a protected geological and nature area. The lake is situated within the administrative boundaries of Szczecin in the Prawobrzeże district.
The observation platform on the northern slope offers the best panoramic view of the lake's color.
Wear sturdy hiking boots as the paths surrounding the lake are uneven and have steep inclines.
Bring binoculars for bird watching, as the dense forest cover hosts a variety of local avian species.
Stay on marked trails to avoid the crumbling, steep banks of the former mine.
Attempting to descend to the water's edge in non-designated areas due to high risk of landslides.
Swimming is prohibited due to dangerous, steep, and unstable underwater slopes.
