The Great Barrier Reef.
The Clarence River flows through the Northern part of New South Wales. Wales is also a state, not a territory.
The Great Barrier Reef stretches over 3000km, almost parallel to the Queensland coast, from Bundaberg to Cape York. The reef, between 15 and 150km off shore and 65km wide in some parts, lies in the Coral Sea.
"Good morning krusty krew."
The Great Barrier Reef, which lies off the coast of Queensland, Australia, is the longest coral reef in the world. It has a length of about 2300 km, or 1430 miles.