The water's turquoise color is caused by the high concentration of calcium carbonate from the limestone substrate.
Submerged attractions for divers include a bus, a boat, and various training platforms installed at different depths.
The maximum depth of the flooded quarry reaches approximately 25 meters.
The area is an active geological site, meaning wall collapses or rockfalls are legitimate safety concerns.
The lake does not have a natural outflow, meaning water levels fluctuate based on precipitation and groundwater infiltration.
Jezioro w Kamieniołomach, located in the Piechcin quarry, is a flooded limestone pit known for its intense turquoise water. The reservoir occupies a former industrial excavation site belonging to the Piechcin cement plant. It serves as a popular destination for scuba diving due to its high water transparency, which can reach up to 10-15 meters in optimal conditions. The surrounding terrain consists of vertical rock walls and greenery, creating a distinct geological landscape. Swimming is technically discouraged or prohibited by local authorities due to the unstable nature of the quarry walls and depth hazards. Access is primarily gained via informal trails surrounding the perimeter of the former mining area. The site is a primary center for regional diving training because of the submerged objects intentionally placed for underwater exploration.
The elevated vantage point on the southern ridge providing a panoramic view of the turquoise water against the grey cliff backdrop.
Wear sturdy hiking boots, as the ground around the quarry is uneven, rocky, and potentially slippery.
If planning to dive, ensure you are registered with the local diving base as independent entry can be restricted.
Bring polarized sunglasses to better see through the water's surface reflection.
Do not attempt to climb or walk along the edges of the high quarry walls, as the limestone is brittle and prone to crumbling.
Access may be restricted during industrial operations or for safety reasons following heavy rainfall.
Respect the 'no swimming' signs if posted, as the site is technically an industrial danger zone; pack out all trash to preserve the fragile ecosystem.
