An Amazon nation in the Cosmic Era
The Reposians, unlike the rest of Atheus, respect rather than fear the sea. In fact, this respect has grown to border on love and dependence. It is a fact, naturally, that most of Reposian exports are seafoods, and most of its income is from sea-based reasons, from oceanic trading vessels to fish.
The Sanguis Islands is an archipelago nation. Dangerous to sail through them, the people who live there are self-sufficient, independant, stuborn, and resilient.
Pirates' many bejeweled rings and piercings actually had a practical purpose - when the pirate or sailor died, the rings could be taken off as payment for a proper burial, saving him from a watery grave. This could be tied into regional culture, or made into a quest (The Pirate's Lost Rings, etc.). Also gives treasure-seeking divers another thing to look for besides crusty old chests.