Fished Beaver Lake, on the Issaquah Plateau on April 5th. Small rainbows (6-8" for the most part) were hitting my #16 brown flies often, and hard. Even with my novice fly-fishing ability I was able to catch 4 in about 2 hours. Other fishermen were having luck with small spoons and power-bait. Water was very clear. The weather was mild, with light winds, temperature the mid 50's, and occasional light showers.