Rattlesnake Lake is a beautiful, and very popular waterbody, that really needs some paddle caches. That sounds like a job for SMuddT!
When placed, this cache was about 15 inches above the water line, easy to find, and quite easy to reach. This was at the highest water level I have ever seen on Rattlesnake Lake, with flooded access to the trail to the Ledges, and the boat ramp signs standing in five feet of water. (The gage is out, or I would report a precise water level. My guess is about 907 feet.)
Towards the end of certain dry summers, the lake level gets as much as 40 feet lower! For a paddle cache, this could be a challenge! What I don't know is whether the container is reachable from the lakebed at those low levels. It will certainly require some climbing.
So that's your choice: search when the lake is essentially full, and paddle to GZ, or look when the lake is low, and prepare for a possibly difficult climb. Or you could just skip it....