Take a look at the Boudin Trail
Its an hour's drive from my house to Lafayette - but well worth it just to get good Boudin. There's not one link left by the time we get back home!!!
Courer de mardi gras.
The small surrounding towns like Church Point and Cade have traditional Mardi gras where the men dress up in traditional costumes and ride horses around the town dancing or singing for Chickens and vegestables they also drink heavily and make there way back to a barn where the women make the gumbo. You can't ride with them unless you know them (maybe if you ask really nice?) but you are more than welcome to watch and eat some gumbo.
Bach Lunch, which is held at the planetarium offers free concerts and some of the city's best restaurants provide the lunches for $5 but you can just bring a picnic lunch if your wish.