Sea Elf

Aquatic elves were isolationist by both their nature and the physical location of their settlements, although they were not quite as reclusive as the wood elfs. Their trust did not extend far beyond their clan and others of their kind, and their communities were very tightly-knit. They couldn't understand why the surface elves did not realize that community and alliances meant survival, whereas rivalry, individualism, and factionalism meant death.However, despite being extremely cautious, they were also extremely curious, and aquatic elves near the shore would often spend a significant amount time secretly observing the land-bound races.

he majority of aquatic elves lived in the Sea of Fallen Stars and the Great Sea, although small settlements could also be found along the western coast of Faerûn Aquatic elves generally built settlements in calm waters that supported coral reefs or seaweed forests. These settlements usually had populations between 100 and 400, though communities both significantly larger and smaller existed. Aquatic elven communities were almost entirely self-sufficient, trading with others rarely and then only for luxuries. They subsisted on kelp grown on their farms and fish they hunted. Wandering heralds would deliver oral messages between communities. Aquatic elves generally spent around 75% of their time within shallow waters that were less than 150 feet from the surface, although they could safely descend to around 600 feet.

For more info: MoM book 5e