Housed inside the converted Beau Plan sugar mill, one of the oldest factories in Mauritius, this is one of the best small museums on the island. The exhibits trace the full arc of sugar production on Mauritius — from the Dutch introduction of sugarcane in the 1640s through the French and British colonial periods, the abolition of slavery, the arrival of Indian indentured labourers, and the eventual decline of large-scale sugar production in the late 20th century.
The building itself is worth the visit: the original machinery — crushing rollers, evaporators, centrifuges — has been preserved in place, and there is a working model of the entire mill process. At the end, a small bar serves rum-and-sugar tastings, including some of the artisanal rums now produced on the estate. Budget about an hour; longer if you find the social history engaging.