This research is a case study of stakeholders' perceptions of learning and provision during a specific English language program. The pedagogical context of the program was clearly defined. English teachers from Hong Kong who had either Cantonese or Mandarin as their first language (L1) came to Australia for intensive language proficiency training and assessment. The Hong Kong government determined the program's syllabus, including assessment instruments and criteria in the Syllabus Specifications for the Language Proficiency Assessment for Teachers (English Language) (LPATE) (Government of the Hong Kong Special Administrative Region (HKSAR), 2000). The Australian provider had created the program from the specifications and had developed appropriate teaching and assessment materials for its implementation in all syllabus components. Additionally, the provider was responsible for administering and marketing the program. Delivery was in immersion mode with the Hong Kong teachers travelling to Australia and residing with Australian 'homestay' families for the 6-week program. The 'guiding issue/question' for the case study was: How did the multiple stakeholders perceive learning and provision? The study drew on a corpus of data collected from the perspectives of various stakeholders within provision of a 6-week in-service and education training program (INSET) (Bolam, 1986) for Chinese first language (L1) primary and secondary school teachers. Stakeholders represented in the study were teachers who participated as learners; the researcher who was a part-time language instructor; a course designer who was a full-time language instructor in the program; and an administrator who also held a wider role in the general marketing of INSET. Multiple forms of data were collected and analysed within a case study design (Stake, 1995, 2000). These included: a document analysis; pretest and posttest questionnaires; semi-structured interviews from individuals and focus groups; stimulated recall interviews from individuals; learner journals; and a researcher journal. Existing knowledge was reviewed through a search of literature, policies and accounts that examined four contextual layers that framed the study and situated it in terms of global, local and intercultural issues. Specifically, the layers were: (a) imperatives for Australian higher education to internationalise; (b) provision of INSET for teachers of English as a Second or Foreign Language (ESL/EFL); (c) language education and proficiency in Hong Kong; and (d) intercultural communication and culture learning as they pertained to an immersion program. While higher education institutions in Australia have recognised the imperative to internationalise, some recent initiatives are poorly researched. Bodycott and Crew (2001a, p. 23) noted a 'dearth' (p. 2) of literature surrounding short-term, immersion versions of INSET such as that used in the current research. A review of literature where INSET had been used for the education of language teachers provided important insights into issues that might affect learning and provision. These involved the extent to which teachers' home country contexts were included in the design and content of programs, whether 'one-off' programs could be effective in the long-term, and what models underpinned the current design of INSET. The major gaps in the literature were (a) reported research on INSET where it is delivered as a short-term, immersion program to South East Asian teachers; and (b) published work on the LPATE as a learning-teaching experience. The current study attempted to address these gaps. While there was an absence of literature on the specific context of the INSET under study, the literature did reveal ways for the teacher/researcher to objectify and reflect on INSET provision. Literature on interactionism and social constructivism provided insights into the role and effect of the teacher/researcher in a data-gathering process. The case study approach was reviewed and Stake's (1995, 2000) design used in the study within a theoretical framework of social constructivism. In its reporting, the case accounts for forces of change surrounding the participants' INSET. These included the internationalisation of Australian higher education and curriculum reform in Hong Kong. At more personal levels, participants provided reflective data throughout the immersion experience. These data from the Hong Kong teachers indicated perceptions of strong positive growth in their English proficiency. This is an outcome consistent with the purpose of the INSET, which was to improve and benchmark proficiency standards. The data also revealed that the teachers had learned much about pedagogy and culture, which formed insights into intercultural negotiation and learning. The providers - an administrator and an instructor - supported accounts their learners had given of learning and provision. Yet, each had particular views regarding what constituted success in delivery of an INSET. While the case study provided detailed explication of the 'nature' of this particular INSET, this researcher supports Crew and Bodycott's (2001) call for further, longitudinal research into the phenomenon. Drawing on findings from this study, specific research questions are suggested to investigate the effects of immersion INSET. Within the constraints of case study method, implications are drawn for the design and delivery of future short-term, immersion INSET. A detailed mapping of what stakeholders reported as culture learning and cross-cultural experiences provided an account of this aspect of the phenomenon. There was strong evidence that a component based on intercultural communication should be included in any future trial to inform INSET design. A new model, entitled 'Intercultural INSET', is proposed for future implementation and research. It incorporates domains of learning established from the case study data and is informed by a theoretical construct designed in the current study and termed, 'Positive Effect Chain'. The proposed model embeds the design within contexts significant to the teacher/participants and to their ongoing critical reflection. This ongoing reflection informs thinking about the proposed INSET course evaluation. Finally, the proposed model extends INSET into a post-immersion phase. This subsequent phase extends participants' INSET interaction, once they have returned to their own countries and to their work in home classrooms. The model seeks enduring and effective learning and requires trial and further study. The case study approach provided a successful vehicle for organising the data of the research and for framing the discussion. It also yielded indications as to the means by which INSET providers might structure ongoing feedback and assessment of their intended curriculum design. These indications are reflected in the proposed 'Intercultural INSET' design.