The degree to which policy, practice, and facilities accommodate trans and non-binary participants in outdoor programmes has been subject to limited research. The outdoors can be a heavily gendered space, demonstrative of both heteronormativity and hegemonic masculinity. This research explores current practices and the awareness, confidence and desire for inclusivity amongst outdoor practitioners. It adopts a bricolage approach involving composite vignettes with qualitative data obtained through questionnaires and interviews, and reports on the lived experience of trans and non-binary outdoor practitioners and participants, and expert inclusivity trainers in the UK. The data indicate that aspects of outdoor programming policy in respect of gender are unsuitable, outdated and incongruent with the opinions and aspirations of many practitioners and participants. The findings should encourage outdoor providers to review their policies in relation to gender and to strive for explicit inclusivity in respect of accommodating and welcoming gender variant participants.