Since 1993, the International Karstological School “Classical Karst” (IKS) has been organised annually, covering many aspects related to karst research. The basic idea of the event is to present the state-of-the-art of the annually selected topic and to promote discussion between participants via a set of invited and topic-related lectures, a poster session and field trips to the Slovenian Classical Karst area.

28th International Karstological School will be focused to the regional karst studies. Karst is distributed in most continents and climatic regimes. Most of what we know on karst is based on regional studies. These have direct implications in development challenges of a particular region, however, their broader relevance and validity of regional results may be questionable. Results of regional studies thus, may or may not be generally valid. Regardless of what your topic is (geomorphology, geology, hydrology, biology, speleology, …) we encourage you to present your regional study and discuss its results in view of their relevance to other karst systems.

On the initiative of the International Speleological Union 2021 is the International Year of Caves and Karst. Therefore, this conference will follow its motto: Explore, Understand, Protect.