This paper reports on an inquiry that examined groups of New Zealand students' motivational shifts related to learning Chinese before and after relocation to China. In the inquiry, we encouraged 15 participants to write reflective journals and conducted two rounds of interviews before and after their study abroad trip to China. The analysis revealed that most participants had their motivation enhanced by the trip, and expected to sustain their heightened motivation for learning Chinese in the future. The findings suggest that the participants' motivational shifts happened during their period of study abroad in China, and were prompted by their new pedagogical environment and individual learning experiences. In other words, the motivational enhancement emerged from ongoing interactions between the participants' L2 self-concepts (e.g., ideal L2 selves) and learning and sociocultural contexts in China. These findings offer fresh insights into the dynamic nature of Chinese language learning motivation and the role of formal and informal settings in the participants' learning of Chinese. They imply that educational stakeholders need to provide authentic communication opportunities and resources to enhance international students' motivation for the sustainable learning of Chinese.