The Philippines has finally shifted to the K to 12 curriculum, with a senior high school program. This study explored the students’ lived experiences in Senior High school. A qualitative research design utilizing the 5-step Interpretative Phenomenological Analysis was used. Ten students from the 10 Senior High Schools in the Province of Siquijor, Philippines participated and were randomly selected and interviewed using a semi-structured interview guide. The following themes emerged: a) opportunities, b) challenges, and c) uncertainties. Likewise, the students had taken advantage of the opportunities to acquire future-ready skills, student-centered instruction, and adequate learning materials, and were mentored by high-performing teachers. There were challenges caused by the inadequacy of the facilities and the difficulty of the curriculum. Uncertainties about the support of the community and the tracks that the students wanted to pursue were also prevalent in their responses. Therefore, the implementation of the new curriculum has some positive developments and areas for improvement.