Boyne Island is a 7.5 km long island consisting of a series of recurved spits that widen to 600 m in the north. The island is bounded by a tributary of South Trees Inlet in the north and the Boyne River to the south. Higher ground behind the southern 2 km of the beach has been developed for the Gladstone aluminium smelter, and the smelter and its extensive siltation fields occupy more than 1 km2 of the island's area. There is road access to the smelter and along the back of the island to the bauxite wharf, 3 km north. The land between the road and the beach remains in a natural state, with access to the shore and beach restricted to 4WD tracks that run the length of the beach. The beach (1429) faces east to north-east as it meanders between the two creeks. The high tide beach averages 30 m in width and has a moderate gradient. It is fronted by 200 to 300 m wide, ridged sand flats along the northern 2.5 km, with a 150 m wide bar along the centre and up to 1 km wide tidal shoals of the river mouth off the southern 2.5 km. Waves average less than 0.5 m and rips are usually absent. read more

Beach Length: 7.5km