Pulau Sebuku – Resource-rich island kecamatan east of Pulau Laut in Kotabaru, South Kalimantan
Pulau Sebuku is both an island and a kecamatan in Kotabaru Regency, South Kalimantan province, lying east of Pulau Laut and west of Sulawesi in the Makassar Strait. According to the Indonesian Wikipedia entry the district covers about 225.50 square kilometres across eight desa and recorded around 7,290 inhabitants, with the kecamatan capital at Desa Sungai Bali, reached in roughly 45 minutes by speedboat from the regency capital on Pulau Laut. The wider Kotabaru Regency, of which Pulau Sebuku is part, was the historic ''Kabupaten Kotabaru'' that gave its name to the regency capital and is centred on Pulau Laut and surrounding islands.
Tourism and attractions
Pulau Sebuku is not yet a packaged mass-tourism destination, but the kecamatan has a distinctive island and resource character. Around Pulau Sebuku itself lie smaller islets such as Pulau Manti, Pulau Samber Gelap and Pulau Lari-Larian on the boundary with West Sulawesi, and Wikipedia lists Pulau Haur and Pulau Manti as local visitor destinations. The wider economic interest of the island lies in its long-known deposits of coal, iron ore and oil, partly worked by companies such as PT. Bahari Cakrawala Sebuku (BCS) and PT. Sebuku Iron Lateritic Ores (SILO). Visitors typically combine the area with the wider Kotabaru and South Kalimantan coastal circuit, including the Pulau Laut beaches and Banjarmasin to the west.
Property market
Detailed property-market data for Pulau Sebuku are not published in widely accessible sources, but the wider Kotabaru context gives a clear picture. Housing is dominated by single-storey landed houses on family plots, with traditional stilt and timber houses common in coastal desa, worker accommodation tied to mining and oil-related activity in some areas, and small clusters of shophouses near desa markets. Land tenure mixes formal BPN certification in built-up centres with traditional family and adat-based tenure in outlying coastal and forest areas, plus large concession areas held by mining and oil companies, so verification of title and concession boundaries is important before any acquisition.
Rental and investment outlook
Formal rental supply in Pulau Sebuku is modest. Demand is driven mainly by civil servants, teachers, healthcare staff, mine workers and small traders serving the desa around the kecamatan office, with a smaller layer of project-based housing tied to mining cycles. Investors weighing exposure to the area should treat it as a long-horizon resource and small-trade location, and should pay attention to coal and iron-ore price cycles, the long-term outlook for Indonesian mining policy, the practical challenges of working on a small island, and the environmental and social licence questions that come with mining-led development.
Practical tips
Access to Pulau Sebuku is by speedboat from Pulau Laut (the regency capital sits on Pulau Laut), with onward sea links to the South Kalimantan mainland and air connections via the Kotabaru area to Banjarmasin. Basic services such as the kecamatan puskesmas, primary and secondary schools, mosques, small markets and a number of mosques and mushola are organised at desa and kecamatan level, while larger hospitals, banks and the regency administration sit on Pulau Laut. The climate is tropical and maritime, with a wet pattern typical of the Makassar Strait. Foreign investors should note that Indonesian regulations restrict freehold land title to Indonesian citizens.

