Many estates were granted to French planters who settled Trinidad in the late 18th century.
No roads crossed the island and the area was only accessible by steamer until the late 19th century.
The county of Mayaro occupies a large area of southeastern Trinidad, but the name is usually only applied to the coastal strip.
Along this strip a number of villages exist to which the name Mayaro is generally applied.
From north to south these are: Kernaham/Cascadou, Ortoire, St. Joseph, Beau Sejour, Plaisance, Pierreville, Beaumont, St. Ann's, Radix, Ste.