Jim and I fished Lake Charlevoix the very first week of May in 2021. It was bitter cold and the lake temperature was only running 43 degrees. We did find some smallmouth, but they hadn't started to move to the prespawn areas yet. The link is to a video we did that will show you and aerial view of the lake along with some of the smallmouth and walleye we caught. https://rumble.com/vhrbw1-lake-charlevoix-bass-fishing-early-2021.html?mref=66lt3&mc=9e0fe