In June of 2018, President Rodrigo Duterte signed the Philippine Mental Health Law (PMHL) establishing a national policy for mental health. The law mandates, among other things, the integration of mental health in the education system and uses a definition of mental health as a state of psychosocial well-being that involves realising one’s abilities, working productively, coping adequately with everyday stresses, showing resilience in extreme life events, and making a positive contribution to the community. The law does not go into detail about how to implement mental health education, which means there is a gap in the knowledge about how best to promote student well-being in schools. This paper details the design of an Appreciative Inquiry (AI) Summit, which is a large-scale collaborative approach to action-research that builds on the core strengths of a system to generate new pathways to positive change. The proposed AI summit will bring together all the key stakeholders of Philippine basic education to explore student's experiences of well-being as defined by the PMHL, and uncover enabling factors and best practices in schools that make these stories possible. The aim is to generate knowledge that will contribute to the cultivation of student well-being in the Philippines.