In the heart of southern Iran’s arid expanse lies Siraf, a testament to the enduring bond between water and civilisation. This port city flourished in the 9th and 10th centuries, sustained by ingenious water management. Exploring Siraf’s water heritage reveals a cultural landscape shaped by the symbiotic relationship between water and human innovation. Through meticulous analysis of technical reports, excavation records, interviews, and historical accounts, this research aims to understand Siraf’s water heritage landscape using an interdisciplinary landscape-based approach. This approach integrates insights from archaeology, geology, geohydrology, and agriculture to provide a holistic view of the interconnectedness of natural and cultural elements. These dynamic systems inspire sustainable practices through landscape-based solutions considering natural and cultural landscape features to address urban challenges. As we face climate change and urbanisation, understanding and preserving Siraf’s water heritage landscapes through an interdisciplinary approach provide a roadmap for a more resilient future.