Although extreme-sport athletes’ experiences have been explored in sport psychology, more research is needed to understand the nuanced identity meanings for these athletes in the context of health and well-being. A case-study approach grounded in narrative inquiry was used to explore identity meanings of 1 elite extreme-sport athlete (i.e., skyrunner Kilian Jornet) in relation to well-being. Data gleaned from 4 documentary films and 10 autobiographical book chapters describing the Summits of My Life project were subjected to a thematic narrative analysis. Two intersecting narratives—discovery and relational—threaded the summits project and were used by Jornet to construct an “ecocentric” identity intertwined with nature in fluid ways, depending on 3 relationships related to well-being: the death of climbing partner Stéphane Brosse, team members’ shared values, and her relationship with partner Emelie Forsberg. An expansion of identity, health, and well-being research on extreme-sport athletes beyond simplistic portrayals of them as pathological risk takers and/or motivated by personality traits was gained from these findings.