Mangrove Creek is an estuary waterway in New South Wales, accessible from the Clarence River. A primary access point for paddlers is the Chatsworth boat ramp on the river. From there, paddlers head south, round the southern tip of Warregah Island, and proceed north into the "Back Channel" to find the entrance to Mangrove Creek. An alternative concrete boat ramp, known as Spencer ramp, is located directly on Mangrove Creek itself at GPS coordinates -33.45795, 151.14718; this single-lane ramp provides estuary access and is not considered tide-dependent. The Spencer ramp has toilets available. A common and recommended route involves a circumnavigation of Warregah Island combined with an exploration of Mangrove Creek. The full island circumnavigation is approximately 13 kilometers. Paddlers can then choose to travel up Mangrove Creek, with a distance of at least 5 kilometers being feasible, and faster paddlers able to go further. For example, a trip paddling 5 kilometers up the creek results in a total journey of about 23 kilometers. The area features a bridge crossing the Back Channel. The overall character is that of a tidal estuary system, with the water level influenced by the tide, which can be low during certain periods. The surrounding landscape includes national park and farmland. Paddlers should be aware that permits may be required for paddlesports, and it is advised to double-check local regulations. The waterway is used for mapping and treating weeds by volunteer groups.