This research investigates dalyans — site-specific fishing structures along the Bosphorus in Istanbul — as sites of collective making and memory, shaped by environmental attunement and local craft. Situated between land and water, dalyans embody knowledge rooted in seasonal rhythms and intergenerational expertise. Accordingly, this study reflects on dalyans as skill-based situated practices. Foregrounding in-situ and collaborative modes of production and inhabitation, it argues that dalyans function as infrastructures not only of food but also of local memory. Today, the sites of dalyans, constructed from wooden poles and nets and rebuilt over centuries, are increasingly being occupied by concrete infill and industrial marine traffic, while the practice itself is being abandoned due to its time - and labour - intensive nature. Through fieldwork, archival research, and participatory GIS mapping to record the historical and present appearance of dalyans and to consider what lessons they offer for the future, this study reflects on how hands-on, tacit practices can inform understandings of engagement with both the self and the environment.