This presentation and panel discussion will explore how One Water Honolulu is building climate resilience through the activities of the One Water Panel. It traces the initiative from its formation through its development, highlighting how it is being used to better integrated projects across departments and jurisdictions. This session will be touching upon the development of Honolulu's first One Water Plan which will be a roadmap for resilient infrastructure projects. In addition, a brief presentation will be made on the Department of Planning and Permitting's Adapt Waikīkī 2050 project that is working closely with the One Water Panel on identifying near and mid-term actions for adapting infrastructure and surrounding built environment.