The Frigid Deep is an abyssal plain nearly 15,000 feet below the surface of the Na-Gaesa Ocean. In the dark waters of the deep ocean, there are few natural landmarks, as the flat plain is largely featureless aside from some hydrothermal vents and cold seeps. The Frigid Deep is full of life, however, with a huge variety of fish, worms, crustaceans, and magical creatures that thrive in the dark.
The only permanent inhabitants of the Frigid Deep are the Kreshensage merfolk.
The Frigid Deep is roughly 460 miles southeast of the Salt Spring Archipelago, 560 miles northeast of the Vanishing Archipelago, and 550 miles south of the Chain.