Trinidad and Tobago is 441 km away from Martinique (bird's eye distance between Fort-de-France, the capital of Martinique, and Port of Spain, the capital of Trinidad and Tobago), however, if you you go to the southernmost island of the Caribbean you will hear a Creole similar to that spoken in Martinique. In fact, all of this is due to the past of the former Spanish and then British colony.
Around 1530, the Spanish Crown sent men to move to Trinidad. Their leader, Antonio Sedeño, left the Spanish coast with a small army of men in order to colonize the island. The Carib Indians who lived on the island were gradually exterminated.
By 1700, Trinidad became a province of the Viceroyalty of New Spain with Central America, but a major problem remained to be solved: the lack of population. A Frenchman living in Granada, Phillipe Rose Roume de Saint-Laurent, got from the Spanish Crown a "public certificate" (Cédula de Población) in 1783.
It permitted only the French who owned slaves or mulattos and free of color of the islands of Grenada, Martinique, Guadeloupe, Dominica and St. Lucia to settle in the island of Trinidad. The only counterparties for the French were that they had to be Roman Catholic and swear allegiance to the Spanish Crown.
In return, the Spaniards put up incentives offering them Spanish citizenship, tax exemption for 10 years, and land grants they could exploit as they wished.
During the French Revolution many French with their slaves, free of color or "mulatto" from the islands mentioned above, including Martinique, moved to the island of Trinidad. The main challenge for color and free mulattos was granting a status they didn't have in Martinique. Although being free, they did not have the status and benefits enjoyed by the French.
The population of Trinidad increased from 1,400 in 1777 to about 15,000 in 1789.
In 1797, the island was ceded to Spain by the British with a large population speaking French and Creole, as you could hear in the former French colonies. The English accepted the agreement (Cédula de Población) signed when the island was Spanish.
Thus, a little distinction was made between whites and free people of color. These even got past the land they could cultivate. After 5 years of residence, they became citizens.
Thus, the former Martinicans met in Trinidad, taking with them their culture and languages.