Flooded quarry in Blansko, Flooded quarry in Blansko, Czech Republic

The flooded quarry in Blansko is a former stone quarry on plot 452/19 in the southern part of the Blansko cadastral area, directly beside the railway line from Blansko to Brno. Its water reaches a maximum depth of 18 metres and is of high quality and transparently clear. Entry is forbidden because the site is private property.

The quarry lies on plot 452/19 in the southern part of Blansko's cadastral area, beside the railway line from Blansko to Brno and just south to southwest of Blansko station. Extraction ended and the pit filled with water to a maximum depth of 18 metres. It is now private property with entry and swimming prohibited, and fencing has long been discussed but never built.

Despite the ban, the quarry's clear water draws swimmers from a wide area, who cross the railway tracks to reach it — itself forbidden. Czech Railways struggles with crowds spreading blankets on the adjacent siding. Fencing has long been considered but never built.

Entry is prohibited: the quarry is private property on parcel 452/19, and swimming is banned. Reaching it means crossing the railway line between Blansko and Brno, which is also forbidden; Czech Railways struggles with bathers spreading blankets on the adjacent siding. Fencing has long been considered but never built.

The exceptionally clear water allows visitors to see the rock layers in detail, making it an unusual place to observe geology firsthand. This transparency is rare at former extraction sites and creates a memorable viewing experience.