Surfacing, a digital map of undersea cables, enables users to traverse the geographies of global network infrastructure. This online system, the user can dive into the photographic archives of cable routes, explore the local histories of cable stations and landing points, visit islands that have long been critical to transoceanic systems, and navigate the numerous connections between network nodes. Surfacing provides a nonlinear way to access our undersea network, one that is geographically rather than narratively oriented.