The Esk River is a river in the state of New South Wales in Australia. It is a tributary of the Clarence River and is located in the Bundjalung National Park near the coastal fishing village of Iluka.[1] It is an increasingly popular kayak fishing location that is home to a variety of species such as bream, flathead and whiting in its lower brackish areas and has a good population of Australian bass [2] in its freshwater reaches. It is considered the largest untouched coastal river system on the north coast.[3]