To (a) evaluate the attitudes of local businesses, residents, and visitors regarding the trial of a voluntary smokefree and vapefree zone covering the central business streets of a popular tourist town in the South Island of New Zealand, and (b) observe smoking and vaping prevalence before and during the trial, to inform national and local smokefree environment advocacy work. The six-month smokefree and vapefree trial included an embedded mixed methods project evaluation to capture a range of stakeholder groups' views about the smokefree and vapefree zone. Data collection methods included face-to-face interviews, non-random pen and paper and online surveys, and observational scans. Qualitative data were analysed using a systematic iterative thematic approach, and simple descriptive quantitative analyses were applied to the survey data. The analysis synthesised information from almost 1,000 respondents. A large majority of respondents supported smokefree and vapefree within the zone (visitors 84%; residents 67%; businesses 63%). A majority of responding visitors indicated that the same rules should apply to both smoking and vaping and that they would be either more likely or as likely to visit other tourist destinations in New Zealand if they had smokefree and vapefree zones. Implementing the initiative was associated with a reduction in the number of people visibly smoking and vaping within the zone. The weight of evidence from the project evaluation points towards a net benefit both for individuals and for the community from implementing voluntary smokefree and vapefree zones in tourist destinations in New Zealand.