Principal’s disability in managing co-curricular activities effectively and efficiently can affect student achievement. Nowadays it will also affect students’ application to further study at a higher level since it has become a compulsory requirement for the application to be approved. Co-curricular activities management is also often being handed over to the senior assistant, whereas as a school manager, the principal should be able to do their best in managing it. Hence, this qualitative study is conducted with the aim of exploring principals’ practices in managing co-curricular activities. The instrument is interview protocol. The total number of respondents are 7 principals, 4 senior assistants, and 3 senior teachers, from 7 schools selected for the study. The qualitative data from interviews is manually analyzed to obtain an explanation of the principals’ practices in managing co-curricular activities. Overall, this study found that principals did the best practices in terms of management, however, in certain areas such as limited school compound, inadequate equipment, and physical facilities, and unskilled teachers to train students, principals need to find a better strategy. Therefore, principals are encouraged to practice lifelong learning to ensure that their practices in co-curricular are at their best consistently.