I've spent some type in Cahuita, a small town in Costa Rica
south of Puerto Limon. Prior to the construction of the Panama
Canal there was a railroad in Costa Rica that connected the
Atlantic (via the Caribbean) and the Pacific oceans. From
what I understand there were laborers who left Jamaica to
work on the railroad who eventually settled around Limon.
i went to Puerto Limon last month, they have an area they call little jamaica, they even have a Pan Chicken man out there