This research addresses the challenges faced by Yuantong Town’s waterfront along the Xi River, where climate change, insufficient festival space, and loss of cultural identity threaten the historical Qingming Festival. Rooted in the town’s 270-year-old agricultural and hydrological heritage, the project seeks to redesign the waterfront through climate-adaptive water management while revitalizing its socio-cultural significance.The study employs a dual methodology: a top-down morphological approach to structure hydrological resilience and festival infrastructure, and a bottom-up pattern language approach to integrate community practices and historical narratives.