Cities are increasingly becoming a multispecies landscape, but with human forces most dominant, the question of how humans value urban nature arises for a more harmonious cohabitation. This thesis explores how passionate immersion in wild urban nature can shift human valuation of wild urban nature towards more relational and intrinsic perspectives. Building on multispecies theory and plural valuation frameworks, a measuring framework was developed that operationalizes passionate immersion through indicators of attention, affect, and care intersecting with instrumental, relational, and intrinsic values. Fifteen participants in Amsterdam engaged in a “Multispecies Safari”, a set of activities designed to foster attentive and affective interactions with more-than-human urban species to understand what their agency meant to them. Qualitative analysis of journals and interviews before, during, and after the activities revealed that participants became more aware of the presence of other urban species, experiencing a stronger relational connection to nature. While instrumental and relational values were initially dominant, participants increasingly expressed plural valuations, acknowledging instrumental, relational, and, to a lesser extent, intrinsic values, following their immersive experiences. However, challenges emerged in communicating posthuman concepts, and language barriers limited the understanding and explicit articulation of intrinsic values, as well as the formation of reciprocal more-than-human relationships. The results suggest that passionate immersion can catalyze shifts in human-nature relationships within short timeframes, although a deeper and longer-term engagement may be necessary to foster more fundamental transformations toward pluricentric thinking. This thesis contributes a novel, empirically tested operationalization of passionate immersion, offering a practical tool for researchers and planners interested in making explicit the values beyond instrumental utility in multispecies entanglements.