At any rate, I too will be taking the Sunset Limited from NM to NOL next January and would be interested in what you have to say about your favorite swamp. I prize wetlands of any type, although I'm not a big fan of alligators.
It's Lake Martin LA near to Breaux Bridge which itself is an interesting small Louisiana town in it's own right and worth some time.
We took a guided tour which is unusual for us, used a small outfit run by local people (father, daughter and son) on what they termed is an Eco Tour, and it was. This is the company we used :
Providing the best swamp, gators, and wildlife tour nature has to offer
We travelled in early October and found this an ideal time for visiting Louisiana and in particular visiting a swamp, on advice took the sunset tour, not for the sunset but the light level, heat and wildlife that was active.
Only saw a few Alligators due to a storm that had passed through the area some days before, can't remember the connection but that was given as the reason. Did pass by one medium sized Alligator basking on a floating tree trunk, one of our favourite photos of wildlife.
Lake Martin is not vast but very beautiful, equal to the wildlife we visited for the flora and were not disappointed. The tour was a maximum of 10 +/- people. The boat not small but not large either and it fitted very well into the channels of the swamp, gliding for most of the time with little noise. The tour was led by the son, the family are native to the area and it shows with every question being answered in depth if required.
There are other swamps we haven't visited yet but we intend to so there may be better, it will be fun finding out.
If you have any other questions feel free to ask, I'd be happy to oblige.
I live in the high desert and I am getting a little tired of it, but not enough to move (yet) to another part of the country.
I'm curious as to why you wrote this, is it ok to ask why?