An open rock and a spring of Křtinského potok

They are located at the bottom of the Křtinské údolí near the Kostelík cave. Open rock is a well-like sinkhole lying in the slope below the road. During the construction of the road, an underground cavity was discovered by blasting, at the bottom of which the underground Křtinský stream flows in a short section of 4 m, hence the name of the sinkhole. About 70 m from it, behind the bridge, there is a source of these waters, which sink under the village of Křtiny near the cave...