DFC, if you get a depth chart of LW there is a underwater point about 1000 meters southeast of Luther Burbank park on Mercer Island. I am told that this is a great spot to catch monster perch.

go to topozone.com if you need a chart.

Also straight off of Barnabie point just south of that location there is a good spot about 300 meters offshore. IF you look at the Topozone map, the spot is right under the "e" in Barnabie.

I used to fish from the dock at Enatai beach park for perch when I was a kid and did well there too.