What is the setting of The Mauritius Command by Patrick O'Brian?

The terrestrial setting presented in the novel is diffuse and consists of numerous ports, cities, and islands. Of significance among these are the island of Rodriguez, the island and locales of La Reunion, and the island of Mauritius. Additionally, several significant scenes transpire in Cape Town. Most of these settings are transient, poorly described, and thought of by Aubrey and Maturin as temporary locations to refit, re-supply, or prosecute military activities.