|The purpose of this study was to identify the causal relationship between constraint factors (intrapersonal, interpersonal, and structural constraints) and attitude of participation also intention of participation in marine sports activities. A total of 172 questionnaires was used in this study and using a convenient sampling method in part of non-probability sampling method. The questionnaires consisted of four parts as factors of constraint, attitude of participation, intention of participation, and demography factors. An confirmatory factor analysis and structure equation model (SEM) were utilized by AMOS. The results of this study are followed; First, among the factors of constraint, only structural constraints were statistically negative causal relationship with attitude of participation. Even though other factors (intrapersonal and interpersonal) were not statistically significant, both factors were negatively affected on attitude of participation in marine sports activities. Second, the factor of attitude was statistically positive significant on intension of participation.