A couple weeks ago we spent a Saturday afternoon at Go Fish in Perry, GA http://www.gofisheducationcenter.com/visitUs
It was very cool and well worth the visit. It's a fishing and wildlife educational center and a fish hatchery. It's the type of place you know the government has no business using tax payer money for (and they spared no expense) but enjoy anyway. Lots of aquariums, alligators, hunting simulators, fishing simulators, boats, educational displays, and an outdoor fishing pond.
The saltwater fishing simulator pulled Gavin off his seat:
Gavin sat still for about 20 minutes of fishing outside. It's a nice setup, with free use of poles and free hotdogs cut up for bait. Gavin did get aggravated a couple times because he wanted to cast the line, even though he had no clue how to do so. They didn't catch anything.