Skip the generic bus tours and book the private chauffeur-driven plantation tour to actually see the estate at your own pace. The 19th-century colonial house is cool for the architecture, but the rum distillery and vanilla house are the real draws. Spend about two hours here; grab a glass of spiced rum and skip the cafeteria food in favor of local roadside snacks nearby. Go in the morning to beat the humidity and the tour bus crowds.
