Balimo Airport — Balimo, Papua New Guinea

OPU is Balimo Airport, serving Balimo, a remote town in the Western Province of Papua New Guinea, situated along the Aramia River in a low-lying wetland region. Given Papua New Guinea's extremely mountainous and forested terrain, air travel through airstrips like OPU is often the only practical way to reach isolated communities, since road infrastructure across much of the country remains minimal or nonexistent. OPU primarily handles small aircraft operated by regional carriers and missionary aviation organizations, supporting cargo delivery, medical transport, and passenger travel for local villages. The airport reflects the broader pattern across Papua New Guinea, where small bush airstrips like OPU form the backbone of rural connectivity.