Whats the BEST pay to fish lake for trout on this side??

I'm looking to spend some quality time with my 6 weight, me & a fly fishing buddy can go last of May into 1st weeks of June. We can do a weekday, like to keep it to a daytrip from Seattle.

Anyone got a fav.......

C/22
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Apocalypse Steelheader.
Chucking gear as the end draws near.