Kind of a weird time at 3 Creek at the end of summer, often is the case the fishing is slowish most of the time, with some better action towards evening at dusk.
With the weather turning very fall like tomorrow through Wednesday this week I would guess the fishing will be fun with improving action along the shoreline drop off’s, especially as Brook Trout are going into pre-spawn.
I love throwing Olive Flash-a-Buggers at them and stripping along the shoreline areas. You can run a trailing fly of a Blue Ice Prince or Red Ice Cream Cone behind the bugger too.
If you are wading the banks just do this with a floating line, if you go out in the boat or tube fish a Hover or Clear Camo to get down a bit.