This ruined city was once the capital of the now-destroyed nation of Lirgen. During Hyrantam’s founding, the Saoc Brethren constructed hundreds of sky-reaching towers to host huge observatories for their nocturnal sky watch. As such, small surviving islands of tower tops jut from the water of this otherwise flooded city. Those tower tops are now interconnected by crude networks of rope bridges and pulleys built by the last of the Lirgeni who still remain behind, determined to survive. Unfortunately, the same ancient observatories somehow now act as a draw for forgotten aberrations from the depths of the Arcadian Ocean, and Hyrantam is no safer today than when the Eye first hit.
Sources: Pathfinder Chronicles Campaign Setting