Yes that is a good point. On the last Google image above, right across the channel from Chain-o-lakes, you can see a sort of brown looking spot. That is a sand bar/island. It's low lying, has a warning buoy on top, but make sure you stay to the left of it. There is water between it and the east bank, but do not go between it and the east bank, stay to the left in the channel.
Many of the coves in this area are full of trees, and some of them have trees right at the cove mouth. Some of the tree tops are barely submerged and hard to see until you are on top of them. Use caution if you go back in the coves to fish.