Recently, there is an increasing awareness of the importance of outdoor activities in Indonesia which followed by the increasing popularity of nature schools and regular schools with integrated outdoor learning facilities. To understand the current status of outdoor learning implementation in elementary schools in Indonesia, a preliminary research in nature and regular elementary schools in Yogyakarta, Indonesia, was conducted. The main purpose of this research is to review current application of outdoor learning as part of school framework of current regular school education system in Indonesia and to determine the optimal way for improving the system. Qualitative and quantitative research was conducted by questionnaire with teachers and students as subjects. As the result, although outdoor learning is highly favored by the students, however, the application at selected schools is still hampered by facilities. Moreover, the design and quality of outdoor learning need to be improved. The result of this study could be used for further studies, especially on designing and integrating outdoor learning into school frameworks. Those researches can be utilized to develop a model for outdoor learning activities in elementary schools which meet the Indonesian National Education Standards.