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.
This really comes from an ancient Chinese novel. Imagine during the PCs' travels, they come to a place where the gender roles are completely reversed. What adventures will the PCs encounter in such a place?