When I first started going to Cuba as an adult, one of my singular pleasures was taking the ferry across Havana Bay from the city to the village of Regla. The ferries were old, unsteady tugboats that dripped oil and fuel into the water but provided a panoramic view of the Cuban capital, especially the colonial district in Old Havana.
The trip itself cost pennies, was almost always silent but for the heavy breathing of the tugboat itself, and dropped anchor right in front of the Sanctuary of Our Lady of Regla. The official story is that this Marian image was concocted by St. Augustine himself for the city of Hippo in northern Africa in the 5th century and then made its way to Spain and the Americas.
But in Cuba, Our Lady of Regla — since her birth a black Madonna — is mostly associated with Yemaya, the Yoruba goddess of the sea.