The walking track by the North Branch of the Kowai River is little used. It leads from the Amberley Domain, along the river, under the rail bridge and to the Kowai Downs subdivision. With a cache at each end, maybe you'll have a wander. It's a nice green stroll in the summer.
The cache is on your left, as you walk away from the road. At the time of placement, the mustard tin contained a Bison tube with the log inside, and two pencils. However, someone went along all my caches and stole the bison tubes
There's a fairly "outstanding" feature here... A big fat clue is in the hint.