Plitvice lakes do not represent separated, stationary waters. The lakes altogether have always been seen as one composed system of lakes. Due to constant changes it is not even possible to pursue individual analyses of single lakes. The water masses reaching the lakes at the upper or lower part of the system are continuously changing the outlook of the lakes and the surrounding landscape.
A unique process occurring at the Plitvice Lakes is the sedimentation of water-bound chalk at certain places. The sedimentation of chalk and the formation of tufa happens dynamically all along the watercourse and in various forms.