Resurfacing a historic canal of Old Dhaka: research through design for promoting natural and cultural heritage tourism

Purpose To encourage natural and cultural heritage tourism, this study intends to offer a sustainable approach to resurfacing a historic canal in Old Dhaka, Bangladesh. Dholaikhal, the canal that was once a vital artery of Old Dhaka, has been encroached upon and buried beneath box culverts to accommodate the city’s road network development, resulting in environmental deterioration and the loss of cultural significance. Design/methodology/approach This study employs a mixed-method research approach that incorporates multidisciplinary techniques after exploring the canal’s historical trace and present condition thoroughly through historical and contextual study, map regression, land use pattern analysis, transect walks, photographic documentation and a design workshop. Findings Findings unfold the scope of reviving the forgotten existence of Dholaikhal, indicating actionable steps for intervention. The proposed regeneration of Dholaikhal and its adjacent surroundings confirms a symbiotic relationship between heritage preservation and tourism development by focusing on ecological restoration and cultural preservation through community engagement. Practical implications The study offers practical recommendations for implementing the suggested design solutions, focusing on fostering collaboration and offering invaluable perspectives for policymakers, urban designers and local residents. It also establishes a model for revitalizing urban waterways of historical significance, therefore promoting a balanced coexistence between the city’s natural and cultural heritage. Originality/value This research engages a mixed-method approach to preserving natural heritage, proposing a holistic model that simultaneously considers ecological awareness, historical relevance and community engagement.