The study maps the social networks, social influence, and sexual health of youth in rural and small-town KwaZulu-Natal, South Africa. This is a longitudinal study with three waves of data collection that examines how relationships, roles, and behaviors change over time. In addition to offering an example of longitudinal implementation within Network Canvas, this baseline protocol also utilizes a lookup roster (note: the public version of this protocol includes dummy data only). Protocols for waves 2 and 3 include minimal differences and are also provided.