Lom Janičův Vrch

Lom Janičův vrch is a former limestone quarry that's located just outside of Mikulov.  It is 51 km (32 miles) from Brno and is part of the Pálava Protected Landscape Area.

Limestone mining at the Mariánský mlýn (Marian Mill) was intermittent throughout the 20th century but ceased around 2004.  

Once mining stopped, the quarry flooded and created a clear water lake which in 2014 became a protected natural monument.

After work yesterday we headed to the lake and the water felt great.  It was about 15℃ (59℉).   

There are strict controls about what you can take in.  No disposable plastic or glass bottles allowed.  

There's minimal infrastructure; just a few changing stalls.  There is a nude section if that's your thing.