Paticipation motivation and satisfaction were analyzed to show the relatonships with various variables, From the factor analysis, 4 dimensions of motivation were identified: activity paticipation, religious / scientific inquiry, landscape enjoymentm, and social contact. The motivation dimension, crowdness measure, and other related variables were analyzed to construct satifactrion model using multiple regression. Behavior of each variable in the model was disscussed with implications for the future research.