The Port of Neath (51’ 38. 96N – 003’ 50. 92W), which includes Briton Ferry, occupies the lower reaches of the River Neath, which follows into the NE corner of Swansea Bay: the river estuary lies between Crymlyn Burrows (51’ 37. 20N – 003’ 51’ 90W) and Witford Point (51’ 36. 77N – 003’ 50. 79W).

The Port handles vessels up to 6000 dwt, and comprises several wharves along both banks of the river as far as Skewen, just below the railway Bridge at Neath Abbey, 2 ½ miles within the entrance. A large marina (Monkstone) lies on the west bank below the river Neath road bridge.

Main commodities traded are, steel, scrap, sand & gravel, coal, waste produce, containers and general cargo.

The town of Neath lies on the east bank of the river 4 miles within its entrance.

The port is run by the Neath Port Authority, with independent owned wharfs operating trade along the river.