Van Es and de Lange formulate datawalking as a method for reconnecting abstract data infrastructures with the material, spatial and embodied conditions of everyday life. Their iconic idea is that data must be encountered “with its boots on the ground”: sensors, platforms and computational systems become intelligible when researchers walk through the environments in which datafication operates. The theoretical contribution is to challenge the invisibility and decontextualisation of data by treating it as situated and constitutive of urban experience. Methodologically, purposive walking directs attention toward the infrastructural traces of deep mediatization. The wider bridge is to urban studies and infrastructure studies, where apparently immaterial systems are understood through their spatial manifestations, maintenance regimes and social consequences. Datawalking thus becomes a scalar operation capable of moving between interface, street, network and institutional system.