I must take issue with 'nomorewars' putting the LSU Rural Life Museum on as a trap. We visited there in late June, 2010 and had a delightful time. The staff was uniformly courteous and engaging. We arrived fairly late in the day and they volunteered to stay after hours so we could visit all the extensive displays. This museum was a top rated part of our trip which included the Natchez Trace Parkway, the town of Natchez, Baton Rouge, Boutin's Cajun Restaurant and Fred's Lounge in Mamou, LA plus lots of impromptu stops in the Cajun back country.
Unique Suggestions: It isn't a trap! Arrive in time to spend AT LEAST 2 hours and don't forget your camera.
Fun Alternatives: Go to Boutin's Restaurant for dinner. It is very family friendly with lots of local families with their children dancing to the live Cajun music.
Swamp tours can be cool, I guess, if you have never seen a swamp before. Alligators are definitely cool. But, the weather in Louisiana is hot and humid; then add mosquitos and gnats, and you might be a little miserable if stuck on a boat for a few hours. This picture is swamp, for sure.