StillWaters is on "our lake". We haven't stayed at the condos but I imagine they are nice. We belong to the SW Yacht Club and the Dixie Sailing Club, also on Lake Martin. There is a very nice marina at SW with a ship's store with snack food. The golf course clubhouse has the main restaurant now. You can rent pontoon boats at the marina. Lake Martin has about 750 miles of shoreline. I think you can rent sailboats and or take sailing lessons.
There are a few little stores near the resort and some other restaurants. Do not miss Moowalla for frozen custard. Chuck's Marina (farther away) has great pizza. I like the "algae." Their pizza is a bit pricey but very good.....The Cove is good and close. Niffer's and Oskar's (Oskar is female!) are other close restaurants.
Depending on when you are coming, we may be able to bring our pontoon boat up to take you for a spin. The lake has gotten busy between Memorial Day and Labor Day but pretty much empty otherwise. Week days wouldn't be bad.
I'll be glad to answer any questions. It would probably be a very quiet and relaxing vacation.
http://www.vetmed.auburn.edu/~birdric/SWYC/horbor point galleery.htm
The top little building is the yacht club clubhouse. The other photo is the ship's store. There is live music during the summer on the weekend on the patio.
There is construction of more condos going on, so you might want to ask about that.