I'm not sure if you've visited La yet but we are currently in Palmetto Lake SP---i would highly recommend it. big sites, very clean park, beautiful! we're extending our stay here since it's so nice.
i would second the tabasco factory and konrico tours (can do both in 1 day).
today we went to martin lake in breaux bridge and it was phenominal...drive down rookery road alongside the river and see birds (lots), alligators, turtles. we even saw an owl! it was a real find. all free!!!
NOTE TO ANYONE GOING TO Palmetto Lake SP---the bridge on route 82 is closed and the roads into the park are very tricky. make sure to call the park before you head out and they will give you directions. follow them exactly. we have a 42' mh and we arrived in heavy rain. it's doeable, but not fun