Babí doly, Nature reserve in Brno-Ořešín, Czech Republic.

Babí doly is a nature reserve in the Brno-Ořešín district, in the valley of the Babídolský stream, a left tributary of the Ponávka, within the Soběšice Highlands. It protects two small ponds with littoral vegetation and an adjoining wetland meadow, on biotite granodiorite of the Brno massif, Královo Pole type. Black alder dominates the trees.

The area was officially protected in 1997 to safeguard its wetlands from development. This legal protection ensured the ponds and meadows could continue supporting their wildlife populations undisturbed.

The site draws people interested in watching frogs and other amphibians in their natural settings. Visitors can observe how wetlands support diverse animal populations and understand the connection between water and wildlife.

The site is accessible via a marked hiking trail that connects two nearby villages. Parking is available in the surrounding area, making it easy for nature enthusiasts to visit.

The reserve hosts European crayfish, a species that has become rare in many Czech waters due to pollution and disease. Their presence here indicates that the water quality remains healthy and unpolluted.