Sète is a town often called the "Venice of Languedoc". It's an important port and a seaside resort located on the Mediterranean Sea, west of Provence, near Montpellier. You can visit this town when you are in the Camargue area.
We parked our car in the parking lot near the port (GPS: 43.3951178N, 3.6954981E). Thanks to that, we were able to move around the canals and still have close proximity to the buildings of old town.
After leaving the parking lot we walked the Promenade J-B Marty, Quai de la Resistance and Quai de Bosc along one of the channels. There are also many good and not expensive fish/seafood restaurants here - you should try one of them! We also strolled the Old Town - Place Aristide Briand (A; GPS: 43.4047022, 3.6948114), Jardin du Chateau d'Eau (B; GPS: 43.4038917, 3.6920006), Place de la Republique (C; GPS: 43.4075161, 3.6904878).
You can also visit two "islands" located between town and the land (D; GPS: 43.4087942, 3.6979711 and E; 43.4035097, 3.6990011) and drive to the Mont Saint-Clair (you can park the car on the nearby parking lot, GPS: 43.4020931, 3.6851339) from which you can have beautiful panoramic views.