Moravian karst is one of the longest explored karst areas worldwide. It is situated north of Brno on the surface of approximately 100 sq km. The longest cave system is the Amaterska cave with its length of more than 35 km of underground corridors. The system of the Amaterska cave contains also the world famous Punkevni caves with the Macocha abyss. The faculty of Civil Engineering at the Brno University of Technology has a long term cooperation with the Czech Speleological Society and the Administration of the Moravian Karst PLA. Several projects focused on the karsological mapping were solved in the past years. The main aim of these projects was to precisely locate the cave systems towards the surface and other caves.The Institute of Geodesy also offers a voluntary subject Speleological Surveying. The introductory part of the article is theoretical and the second part is focused on practical aspects of underground surveys. At the end, students spare two days on field training in the Býčí skála cave in the central part of the Moravian carst
