Complex sentence: Both ships take their names from prominent points on the Australian coast: "Leeuwin" is named after Cape Leeuwin, on the South West tip of Western Australia while "Melville" is named after Melville Island, just to the north of Dawin.
Split into simpler sentences: Both ships take their names from prominent points on the Australian coast. Leeuwin is named after Cape Leeuwin, on the South West tip of Western Australia while Melville is named after Melville Island, just to the north of Dawin.