A correlation between dealing with school failure and leisure activities is relatively uncharted territory. Therefore, the aim of the research was to determine if there was a difference between the adolescents who were dealing with school failure and leisure activities regarding the age, sex, school achievement and involvement in extra-curricular and/or extracurricular activities. The study was conducted on a sample of students in higher grades of primary and secondary schools in Trogir and the results showed that pupils and students differed significantly in the way of spending their leisure time. High school students were prone to risky behavior, as well as to fun and relaxation in their free time, while elementary school students were spending their free time with their pets and for leisure; they were prone to sports activities and more engaged in computer activities. Also, according to the survey results, there is a difference between the adolescents regarding the sex, school achievement and involvement in extra-curricular and/or extracurricular activities. In dealing with school failure, elementary school pupils applied strategies of problem solving, social support and parental support more than high school students. Female respondents achieved significantly higher scores on almost all subscales. In a situation of getting bad grades, students with excellent academic success were using problem solving strategy and they were looking for the support of parents, while students with good academic success were reacting emotionally. Adolescents were equally faced with school failure, regardless of whether they were involved in extra- -curricular and/or extracurricular activities or not. Also, the survey results have indicated a statistically significant association between dealing with school failure among adolescents and leisure activities.