You're going to love the race route!
We will be running around the lake nearly three times (the finish line will be offset a bit because the loop isn't exactly the length we need for our 5k run or walk). It will be beautiful. Your family and friends can watch while they enjoy the view, there will be some vendors there already and the lake should be stocked with fish by then.
Runners will run on the road and walkers will take the walking path. This will prevent any crashes.
We rarely have the opportunity to use the lake for a run this time of year, so enjoy it!