In the late 60s and early 70s I ran a small (12,000 ton) island freighter for Wray and Nephew in conjunction with Grace Kennedy. You can still see these types today going along the coast of Jamaiaca.
Unfortunately, during the mid 70s due to Geo-political issues that effort was cancelled.
To the credit of the owners of W & N I was given a contract to haul cane from the outlying farms (Holland Bamboo, Maggoty etc)
I was at the estate 3 - 4 days a week in that time. In fact I spent the night of the 1980 elections in the home of the estate manager (Howard Tavares)