Shallow-marine depositional environments of the shoreface-inner continental shelf adjoin and interact with (via sediment exchanges) modern coastal sediment systems, influencing beach sediment budgets and shoreline behaviour. They also facilitate lower-order (larger-scale) alongshore sediment connectivity alternate to or in addition to nearshore pathways. They are highly dynamic settings where multi-scale morphology emerges from the ever-changing interplay between wave- and current-driven fluid flows, antecedent morphology, sedimentology, and hard substrates where present, within a complex morphodynamic system. Sedimentary features including bedforms are identified as relatively common in shoreface-inner shelf environments along the southeast Australian coastline. High-resolution coastal seabed mapping has revealed the subtle morphology of sedimentary plains, which show evidence of a complex and dynamic coastal seabed subject to combined wave and current influences. Morphology-based interpretations in the context of global examples provide new insights on shoreface sediment dynamics. Our findings suggest pathways and processes for along- and across-shelf sediment transport and connectivity with modern coastal systems, with implications for coastal management, including sediment budgets.