In the last few decades slope stability became a very important subject in geophysical studies in Poland. One of the reasons to why it is important to perform slope stability measurements is safety. The ski lift that was constructed on the Cisiec landslide in the Outer West Carpathians, caused deforestation and prolonged the snow retention period which increased the risk of landslide movements. In the field measurements, performed in 2018, five geophysical methods were applied to obtain a detailed information about the landslide structure. The results of these measurements will be presented in during this seminar.