Eat: Pancake Pantry (try lunch sandwiches, they are terrific.) The Brewery...fantastic beer, great pizza, good wings. Parton's Deli is a hole in the rock wall in the lower end, by Hillbilly Golf. Good, old-time, simple, steamed sandwiches that are better than they should be.
Do: National Park (obvious, but few really do). Aquarium. Visit the Jim Gray Gallery and Alewine Pottery shop in the Glades Arts & Crafts area.
10-15 years ago, you could have done more of the "local" thing. but the local generations have sold out to the commercial interests in nearly every regard. They have sold their businesses, land, ideas, and culture. The "characters" are gone and remain only as names on signs. The town is better developed and has more big city amenities, but those come with a price.
Was a cop in G-burg for three years before moving to another local agency. I know every square inch of that place...