Navigating on land

We have a rental car this weekend and are busy exploring parts of Martinique that we haven't seen before. The East coast is beautiful, sea is calm and still like a lake, sheltered by the large barrier reef surrounding the Atlantic side of the island. What else is characteristic for Martinique are the bananas, they've gone completely bananas with the plantations here, it feels like 50% of the island is covered by banana plantations. Wherever you drive there are mileslong lines of banana trees with the banana clusters covered in blue plastic, ready to soon be shipped. Most of them goes for export to France as far as I understood it.