The Tweed River is NSW’s northernmost.
The source is northwest of the village called Lillian Rock. Four contributing creeks and the Oxley River join the Tweed River before it flows through Murwillumbah. There is a weir just upstream from Murwillumbah. At Tumbulgum the Rous River joins and then another two creeks before the Tweed River reaches the south pacific ocean.
The river is put to a huge variety of uses. Fishing, and especially over the long summer powerboating, rowing, barefoot skiing, houseboating, dragonboat racing, surfskiing to name a few.