
We took Big M to the aquarium in New Orleans for his birthday.
Decent sized aquarium - we went ahead and got an annual pass that gets us in for free (a couple of times and it pretty much pays for itself). Also gets us into the zoo and discounted entry into the Insectarium.
I particularly liked the Gulf of Mexico exhibit - had an approach that touched on the industry and technology as well as the animals in and around the offshore rigs.