Coming from Kenai towards Anchorage on the Sterling Highway, turn off at the Sunrise Inn and follow the gravel road down to where Quartz Creek dumps into Kenai Lake. If you have chest waders, you can wade out to the drop-off, or, if you can get Mike's canoe, you can put in there and fish the edge of the drop-off.
When I say "drop-off" I mean it's like the Continental Shelf. It goes from a couple of feet to 60+ feet deep right now!
We've caught some impressive Lakers, Dollies, Rainbows, and Silvers there.
I hope you have a wonderful time and catch so many fish you get tired of fishing.
Ed