Above is all correct... but I personally recommend Harrison Bay State Park over Chester Frost.
Bass patterns are all over the map. Topwater in and around grass, especially early and late. What mjwendorf said. But you'll also want to keep your eyes peeled (and a rod rigged) for some topwater midday. You're likely to spot bass and stripe schooling up and busting minnows on top in heat of afternoon.
If you're willing to use some live bait, send me a PM and I''l tell you one spot/pattern where you're virtually guaranteed a few fish.
I would also highly recommend that you visit
http://www.chattanoogafishingforum.com You will have to become a registered member before you can see the Fishing Reports section, but you'll find some outstanding, up-to-date fishing reports there. I'd suggest you watch specifically for reports from a guy who goes by screen name "Jmax." He won't give you GPS coordinates, but he'll give you solid info on patterns and lures.
Finally, if you decide you want some "professional" guidance, I have a guiding partner who specializes in bass fishing the Chick. Ben Hayes is topnotch! Watch him in action here:
http://www.sceniccityfishing.com/largemouth.html
I'm not prone to "high pressure sales tactics," but even if you bring your own boat, if you're going to be here a few days, $200 for a half-day trip (with some locations, tips & techniques), is a good investment in making your own following fishing days much more enjoyable. Just sayin' ...
Oh yea, I also know another guide real well who will take you catfishing. :mrgreen:
I hope you have a great visit to my backyard. I'm proud of it. :tu: