["Tijdschrift voor Economische en Sociale Geografie, Volume 117, Issue 2, Page 194-213, April 2026. ", "\nAbstract\nThis study investigated the rising trend of leisurely cross‐border activities among Hong Kong residents. A survey conducted in March 2024 gathered 201 valid responses from 210 questionnaires, collecting demographic information and exploring respondents' attitudes, behaviours and motivations. Using the self‐selection effect and structural equation modelling, the study expanded the Theory of Planned Behaviour to examine the combined effects of the leisure environment and attitudes on cross‐border leisure behaviour. Results showed that destination popularity in cross‐border areas is positively linked to leisure resources and proximity, with cultural richness and distance from ports enhancing appeal. Both attitude and environmental models of leisure behaviour were validated, revealing a reciprocal relationship between them. Additionally, leisure attitudes directly impacted the time spent on activities, while the leisure environment's influence on distance was more complex. The study underscored the critical role of attitude in mediating environmental influences on cross‐border leisure behaviour.\n"]