The venom stone or variolite is a stone covered of stains that recall the symptoms of smallpox. This stone comes from the Durance river, travels along the Rhone and lands on the beach of Maguelone. If you start your cruise from Lattes on the Canal du Midi, go towards the Thau lagoon and stop after the bridge to try to find this very rare stone.
According to the legend, it would have many therapeutic virtues. For the less fortunate, go to the Abbey of Maguelone and buy this precious stone at the gift shop.