Thanks everyone for the advice on Fairfield Glade. We just got back and we had a great time, one of the best vacations we've ever had.
It turned out to be several mini vacations for us because we visited several different areas - St. Louis for the first weekend (for a basketball tournament), 4 days at Fairfield Glade, 2 days in Nashville, and yesterday in Arkansas visiting relatives.
Fairfield Glade is a unique place. The timeshare is intermingled with a large residential area and it takes a little while to get used to the layout. We were there for four days. The weather turned out to be perfect for us (the last day it rained but we used it to relax from the hiking and checked out the playhouse). For activities, we were able to get out and do the following:
Bike riding at the resort
2-hour organized hike at the Fairfield Glade
Tennis at the courts by the Legends restaurant at the golf course
Fall Creek Falls state park
Smokey Mts (Charles Bunion trail)
Cumberland state park
Cumberland playhouse
I'd have to say the hiking was some of the best we've ever done. Fall Creek Falls and the Smokey Mts were really great!
Nashville was very nice too. In fact, we've now decided to try and book a full week there, since we didn't even come close to really checking out that area. We did get to see three fantastic music shows at the Bluebird Cafe.
Very memorable trip for us! In fact, my wife said it was her favorite.
