Nissan is known for its tunnel underneath the Canal Du Midi, the Tunnel de Malpas. And The Oppidum, just outside of Nissan. There’s a museum (free entrance) with an overview of all the ancient findings and a magnificent view over the area. From up hill you can see the ‘sun with its beams’ in the field.
In Nissan centre you can do all your shopping. You can walk to town for your baguette and croissants and in the evening you can enjoy the fine restaurants and pizzeria in town.
Beziers is only a few miles away and the beach about 14 km.