This study investigates the adoption of foreign Central Bank Digital Currency (CBDC), focusing on the electronic Chinese yuan (e-CNY) in the context of international travel. By integrating technology acceptance factors with travellers' CBDC readiness, source credibility, and economic benefits, and using involvement as a moderator, we examine the key drivers of CBDC adoption. Findings from partial least squares structural equation modelling of 486 survey responses reveal that onsite use capability, perceived usefulness, economic benefits, and source credibility significantly influence attitudes towards CBDC. Involvement positively moderates the relationship between onsite use capability and attitudes, while it negatively moderates the effect of emergency response and source credibility. Based on these useful findings, policymakers need to ensure clear communication and robust emergency support to build trust in CBDC systems.