Oh, Dave...that looks like a beautiful race. Sounds like a recipe for a fantastic run!
My very favorite race course (a HM) is a paved path that goes all the way around a lake that we used to live near...same community where did works and the didlet goes to school. The entire course is visible from the street, but the path is safe, so it's more-or-less a closed course (runners just need to watch at side-street intersections). Much of the course in the shade, views of the lake, small race. I am really bummed that it won't fit into my marathon training this year. I think it is only 2-3 weeks before the big race...a little too close for comfort.
Needs more cowbell!
3 weeks out, you can run it, but don't race it. I do my longest run 3 weeks out, so you could warm up with 10-12K, then run the half at an easy pace to start and thrown in a few at MP for the finish....just thinkin' out loud here
• Keep doing stuff.
Nah...I have a feeling I'd still overdo it. I'd want to beat my PR from last year. Better to do a long run without paying a race entry fee.
Do they have pace bunnies there? sign up for that. freew race, free shirt and you're forced to run at a certain pace. Just sayin'