A new entrance into the cave was dug from the Bečva valley. Electric lighting was installed in the cave and in 1926 it was open to the public. In 2002–2005 the caves were renovated. The paths and wiring were renewed. A huge amount of rock was removed. This rock debris had filled some natural cavities and hallways. It had been created at the time of original works and for economic reasons had not been carried out of the caves. During this renovation some parts of the system returned to their original form.