||Monitoring of illegal human activities seems to be very important issue. Those activities vary from hiking, climbing to skiing, exploring caves and gathering plants. In the Tatra National Park camera traps are used to examine these issues and estimate the scale and type of human trespassing phenomena as well as its influence on wildlife. This method is worldwide used for wildlife (Roveroa et al., 2013; Wearn, Glover-Kapfer, 2017) as well as visitor monitoring (Hossain, et al. 2016; Miller et al., 2017).