The purpose of this research aimed to explore the influence of adventure education activities on collegiate athlete's group cohesion. Participants were 8 athletes from 2 school athletic teams, including: women's volleyball and men’s softball. After participating 2 days (8 hours per day, 16 hours in total) adventure education programs, including: PA games, team orienteering, ropes courses as well as reflection and debriefing, the approach of phenomenology and the qualitative methodology of in-depth interview were practiced to explore the influence on participants' group cohesion. According to the result, the adventure education activities could enhance the group cohesion among teammates. In the end, researchers provided some suggestions for future research and course design.