On a Caribbean tour to promote environmental protection, the royal couple were led through the home - now a museum honoring the late singer - by Marley's widow, Rita, and sons Robert and Rohan.
Charles and Camilla viewed memorabilia such as tour photos and a Gibson guitar favored by the singer, who rose to international stardom before dying of cancer at 36.
"It's quite a spectacle," local resident Dale Bent said of the touring royals.
Gov. General Kenneth Hall and British High Commissioner Jeremy Cresswell accompanied the royals, who are nearing the close of a five-island tour aboard a 246-foot yacht that boasts a hot tub, gym and 24-member crew.