Note that the Fasthotel does not sell alcohol as it is in a freeway stopover! The only place you can buy a glass of wine or a beer is at the restaurant on the lake if you order a meal. I had to survive on a non-alcoholic beer in the café while waiting for the restaurant to open at about 7.30pm.
I LOVED the 2-day walk along the Canal du Midi – I took my time, stopping to watch the boats going through the locks.
I stayed at the Gite du Pelerins at Ayguevives, about a km or two off the trail. It’s about half way along between the Fast hotel and Toulouse. It doesn’t have many beds, so best to phone or text the day before. It costs 15 euros (bed only). I didn’t see a shop anywhere in the village, but fortunately I had a few provisions with me from Toulouse.