I have been to tumble lake a few times, last time was a couple years ago. Its a beautiful lake, and there are fish to catch out there, I have not caught anything big there but just about 8-10" trout. The water is very clear and I used lures, and as I reel them in I can see the fish chasing after it.. it is pretty cool. I'd like to go back again soon.. the hike is 1.5 miles downhill from the trailhead above the lake. So, the hike is a work out, down hill and uphill. I'd like to hear more about what people are catching in this lake. It is 42 feet deep as I have heard.