This article explores navigation when knowing is intrinsically difficult by looking at how irregularized migrants know during their perilous journeys to and through Europe, focusing particularly on the significance of digital practices on these journeys. Based on retrospective ethnographic fieldwork carried out with Syrian refugees in and around the Danish-Swedish borderland, the article seeks to engage with digital migration studies, arguing that an understanding of irregularized migrants' navigation, with or without digital practices, must take a point of departure in the emplacement and embodiment of knowledge. Secondly, the article brings instability and danger into the anthropological theorization of knowing in order to emphasize the shifting positions and capabilities of knowing bodies.