The Antarkos Ocean, sometimes called the Ocean of Frozen Dreams, is the largest body of water on Golarion and covers most of the planet's southern hemisphere. No continental landmass lies at Golarion's southern pole, though a vast polar ice shelf provides solid ground at the world's southernmost reaches.
The northern reaches of the Antarkos, where it borders the world's other oceans, are plagued by storms and powerful currents; the waters between the Antarkos and the Valashmai Sea are especially deadly. Icebergs break off the ice pack into the turbulent waters, where brave sailors from Southern Garund hook ropes to them and tow them to port to provide the wealthy with harvested ice.
Ghosts and animate dreams, even those from far across the world, are drawn to the Antarkos Ocean for reasons unknown. Speculation abounds as to the reasons for these phenomena, ranging from a powerful artifact to a dimensional portal usable only by incorporeal creatures.
A handful of humanoid creatures live on the ice pack as well. The most common are degenerate race of ice trolls who hunt whales and worship the auroras. When food is scarce, the trolls trade with a mysterious race of aquatic giants who live in the deep waters. These giants have strange psychic powers, which they use to enslave the thoughts and dreams of surface dwellers.