Domain of Merfolk

The kingdom of the merfolk is an almost entirely underwater civilization of aquatic creatures centering around the city of Moanakai, which lies in a deep cavern.

Geography
Most of the islands, inhabited by aquatic elves and humans, are tropical forests surrounding a volcano. The rest is in the tropical ocean, each city connected through powerful currents.

Moanakai
Moanakai is a large city thats at the bottom of a large cavern in the ocean, with a large castle holding an bubble of air inside for visitors. Its also the location of the Temple of Laka.

History
Merfolk and Tritons have lived accross the ocean since the beginning of time, and usually stuck together until about 2000 years ago, where a group of merfolk were banished for an attempted revolt and hostility twords land dwellers. Eventually this group evolved into sirens.

Politics
The Merfolk Kingdom is ruled by  Queen Talomora, a giant mermaid who spans over 20 feet, long, and is a very powerful magic user. She has a minor cult of personality, and most look to her as the mother of all merfolk.