I started this research, as I came to recognize how serious the safety problem was in our country’s leisure sports scenes and how urgent it was to academically look into this matter, on the occasion of the tragic accident in July, 2013, where many students went missing or dead in a private training camp facility in Tae-an. As the research methods, I used the questionnaires for the first round of the study, the observation and interviews for the second, and a method in which I met a group of pundits at once in a place for the third. These methods are based on Spradley’s DRS techniques. Through the methods, I mainly focused on why people are unaware of safety matters when engaged in leisure sports. As for the conclusion, I introduced three major points : the participants’ insensitivity to safety, the instructors’ insensitivity to safety and the insensitivity to safety in educational sectors. First, the participants’ insensitivity to safety results from their psychology of excessive desire to take part in activities and to show off what they can do. Second, the instructors’ insensitivity to safety comes from their absence from the activity scenes in a sheer negligence of duty and failure to play the role of the ushers who must lead the participants. Lastly, the insensitivity to safety in educational sectors has something to do with inadequate facilities and old equipment and the lax governmental regulations that make people unaware of how serious the safety problem is.