The Canal du Midi is truly magnificent. From the standpoint 17th century engineering, doubtless it must have been regarded then as a miracle. Personally, I think it still is. I’ve had the pleasure of visiting the Canal du Midi three times, although I have never been able to navigate the Canal by boat. A shame.
The surrounding countryside is beautiful, with everything Mother Nature has to offer. Vineyards, the beautiful old trees, which are so typical for France. And please, dot't forget, the Languedoc has a very interesting 2000 year old history. You can feel it. And for me as a Northern European, it is very nice to see that life has a different pace along the banks of the Canal. So, visit the Canal du Midi and the Aude region, enjoy it. You will. Oh, and it does smell so nice over there.
In for a laugh? Visit the nine locks of Fonsérannes. The skippers of the rental boats will make it worth your while, mostly not being hampered by any knowledge of seamanship and line handling.
The Canal du Midi is rightly on the list of UNESCO World Heritage. The French can be proud.
Little tip for visitors in the neighbourhood of Bezier: a bit to the west lies the village of Nissan, close to the Canal du Midi. You might as well take a look at the Opidum d'Enserun. See for yourself, because it is hard to describe, but I am sure you will be astounded.