This study examined stakeholders’ perception related to the Korea–Indonesia international ecotourism official development assistance project in Tunak, Lombok, Indonesia. In-depth interviews were conducted with 18 local community members, government officers, and project executors in 2014 and 2020. Six themes arose from the respondents’ perceptions: nature appreciation, enhancement of sociocultural development, prospect of stakeholder involvement, boosting environmental conditions, present economic contributions for conservation, and project deficiencies. The results showed that the project was carried out in line with the initial plan and emphasized local community involvement. However, the community’s dependence on external help could lead to unsustainable ecotourism practices in the future. Through various project programs, the local village’s economy and infrastructure started to develop. Education and direct local community involvement positively affected the local community conditions, both in sociocultural and economic terms.