This article explores how guides negotiate uncertainty in a risky mountain environment based on three years of participant ethnography with Norwegian ski guides. This study makes two primary contributions. First, we introduce the literature on organizational routine dynamics to adventure tourism research; this helps to explain how guides perform and adapt routines to socio-ecological uncertainty. Second, our socio-ecologically informed approach highlights how social interactions impact the ‘more-than-human’ post-materialist discourse in adventure tourism research. These two contributions, in combination, suggest that negotiating uncertainty is dependent on the evolving nature of socio-ecological entanglements.