This article presents the result of the study on the development strategy of local culture literacy (angklung) through cross-curricular learning by integrating indoor and outdoor environment. Designed through a case study as a qualitative study, this study involves 1 teacher and 24 4th grade students at Sekolah Dasar Laboratorium Universitas Pendidikan Indonesia. Data obtained from observations, field notes, interview, and document study were analyzed and interpreted in a continuous fashion to elicit conclusions. The result indicates that angklung local culture can be learned through mathematics, science, Indonesian, art, and social science subjects. In addition to classroom setting, Saung Angklung Ujo is also a great place to enrich angklung experience. The conclusion is that cross-curricular learning by integrating indoor and outdoor environment is a feasible learning strategy that has the potential to develop local culture literacy (angklung) in elementary school students. The result of this study is thus recommended as a learning alternative to introduce local cultures to elementary school students.