FATMAP difficulty grade
Windows #4 is the longest of the windows, as it starts much higher, and ends lower in the creek bed.
Hike from the top of the Mercury Superchair about 1,000 meters.
When the hike turns uphill and to the left, you will be right on top of windows #4 with Windows #5 to the left.
Take the tight tree run straight down the fall line and Windows #4 will open up for a very long section in multiple places.
The run out from windows #4 is considerably longer than Windows #3, so stay as high right as you can, and beware that the river will begin to travel up hill through the valley.
Taking Windows #4 all the way to the river is tempting, but will result in a very challenging run out.
Late season the river can be hard to spot, and can even be possible to cross, but make sure to stay on the uphill side of it.