The many positive effects of outdoor learning on students form a good idea about the necessity of maintaining this model with students. However, at this point, perhaps the most important detail to be considered is the level of perception of the students who are directly involved in the subject of outdoor learning. This study is a quantitative study conducted to determine the perception levels of secondary school students towards outdoor learning. The study was designed in accordance with the survey model. 980 participants were included in the study on a voluntary basis. The study data were collected through the “Out of School Learning Environments Perception Scale (OSLEPS)”. The items in this scale were collected using an online form. In the analysis of the data, t-test for independent samples and one-way analysis of variance for independent samples were used. In this study, which was conducted to determine the perceptions of students about outdoor learning environments, the answers given by the students participating in the study to the OSLEPS were evaluated in terms of their gender, grade level, living place and where they spend their holidays. As a result of the analyzes, both female and male students have higher perceptions of willingness to learn and integration with other courses, that outdoor learning environments have a greater effect on female students than male students and female students' perceptions of outdoor learning environments are higher than male students. When the studies in the literature and this study are evaluated together, it is seen that the results obtained overlap with each other. When evaluated in terms of other factors, no significant difference was found between the variables. Since outdoor education activities are an educational process in which the five senses are used together, there are activities in which movement, excitement and curiosity are involved, it ensures that students are constantly active in the process, increases their desire for learning and presents information from different disciplines as a whole, it can be suggested that such activities should be included more in the curriculum prepared.