The main plaza of this underwater city is an unusual octagonal shape. The grand archway which forms the entrance to the city dominates the eastern face, while the remains of murals can be seen adorning the crumbling walls to the north, northwest, south, and southwest. Towers still rise along the northeast and southeast facets, flanking the entryway, while a low, stepped wall leads to another, smaller plaza to the east. The center of this great plaza is occupied by the low ruins of a pyramid, which may once have been crowned with a temple. Glyphs decorate each of the old steps, their curls and symbols telling the story of this ancient place. Moving through the area, the silt underfoot shifts to give glimpses of ancient artifacts - shards of stone or pottery, fragments of precious jade, flak