On May 7-9, 2023, the City of Portsmouth NH, Strawbery Banke Museum, and the University of NH Earth Sciences Center, in partnership with Newport Restoration Foundation, hosted a three-day conference in Portsmouth, NH. KHAW: Portsmouth explored the steps coastal advocates are taking to address the challenges depicted in previous KHAW sessions: data collection and remediation efforts, public outreach initiatives focused on adaptation and resilience, and solutions to the impacts of sea-level-rise, recurrent flooding, and climate change on historic resources. Sessions explored the theme “Water Has a Memory: Protecting Historic Port Cities from Sea Level Rise” and fostered a collaborative and interdisciplinary discussion focused on implementing practical solutions.