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The study focuses on the 3D seismic interpretation of Late Pleistocene offshore Sarawak, investigating its implications for shelf-to-deepwater depositional analogues and sediment routing. The Sunda Shelf, once a broad coastal plain during the Last Glacial Maximum (LGM), offers insights into sedimentary processes through its transition to present-day conditions. NW Borneo serves as a key area for studying sediment supply, routing, and depositional systems. This research aims to reconstruct Late Pleistocene fluvial systems from upstream to downstream regions, utilizing extensive 3D seismic data and shallow boreholes. Notably, the study identifies various depositional elements such as incised valleys, shelf-edge deltas and slope channels, which provide valuable insights into sedimentary analogues and sediment routing. The analysis reveals complex patterns of incised valleys, reflecting changes in morphology and sediment distribution. Palaeogeographic reconstructions also highlight the influence of sea-level fluctuations and tectonic factors on sediment transport pathways. Overall, this study contributes to a deeper understanding of sedimentary processes in shelf-to-deepwater environments and offers important implications for geological interpretations and sedimentary analogues in similar settings.