What is the main setting in the novel, The White Woman on the Green Bicycle?

Trinidad is the country where George and Sabine settle as young people and where they spend their lives. The country is intoxicating in some ways and George loves it. Sabine hates the heat but remains because George does. There are brief mentions of some nearby villages and cities and only vague descriptions of the country itself. The overall setting is real and adds a level of realism to the story.