The study is intended to understand the process of the adolescent's experience and examine the reflection process and the role of facilitator in the process. Methods of data collection included observation and focus groups. The fieldwork was conducted in January and March 2007, and students of junior high school who participated in a three-day camp during the period were selected as the study sample. Two different groups of students participated in the study. Two focus groups from each junior high school were held. The results show that the adolescent participants learnt a lot of team cooperation, trust between the partners, and communal discussion from the course. They think the outcomes from course can apply in the daily life. In teams of reflection, many respondents expressed in the focus groups that the reflection process led them to think more about what they have learnt from the games. The research suggests that the reflection process is very important to the outcome of the adventure education program, and during the reflection, the facilitator should interfere as least as possible.