The Atha'an Miere or Sea Folk spend their entire lives on their ships. In particular, they consider it important to be born and to die on the water. This is tied into the Jendai Prophecies. They have very dark skin, straight black hair and black eyes. Men and women have tattoos and piercings. The tattoos identify their Clan. The number of piercings identify their rank. Men are clean shaven.
The ruler of the Sea Folk is the Mistress of Ships, currently Nesta din Reas Two Moons. The Mistress of Ships holds as much power as many queens. The Master of the Blades, currently Baroc, is sometimes married to the Mistress of Ships and is responsible for trade and defense of the Sea Folk. The First Twelve Wavemistresses elect the Mistress of the Ships (WH,Ch24).
Like the Aiel, the Sea Folk are divided into numerous clans each headed by a Wavemistress. Her Swordmaster serves the same role within the clan as the Master of the Blades. Within a clan, each ship is captained by a Sailmistress. Her Cargomaster is responsible for the trade and defense of the ship. The Wavemistress of a clan is also the Sailmistress of her ship. The First Twelve Sailmistresses of a Clan chose the Wavemistress (WH,Ch24).
Each ship also has a Windfinder. Windfinders are able to channel and are highly skilled in Cloud Dancing which they call Weaving of Winds. (ACoS,Ch13)
LoC,Ch27 - Erian tries to visit the Sea Folk ship at Cairhien but she is refused boarding.
LoC,Ch28 - The Wavemistresses both write to Rand requesting audiences. They address him as the Coramoor. and seal their letters with a symbol, two things like flattened bowls with a thick, ornate line running from one through the other.
LoC,Ch32 - Egwene tries to visit the Sea Folk ship at the Cairhien docks but the Windfinder detects her channeling ability and drops her overboard.
WH,Ch11 - According to Sea Folk protocol, when a Wavemistress or Mistress of the Ships dies or retires, her Windfinder is demoted to the lowest rank and must start over.
CoT,Ch1 - The captive Windfinders jump the gun and escape before Mat expected. In the battle that follows, hundreds of Windfinders die and many ships, both Sea Folk and Seanchan, are destroyed.
CoT,Ch11 - The Windfinders and the Kin are seriously agitated by the powerful channeling.
CoT,Ch12 - The Wavemistresses of the Sea Folk will hold a conclave in Illian to elect a new Mistress of the Ships.
CoT,Ch12 - The Windfinders who lost their ships at Ebou Dar are now something of second class citizens.
ToM,Ch25 - There are Sea Folk ships in the port of Bandar Eban, but the dockmaster Iralin will not let them unload until Rand returns, purifying the foodstuffs.