Hidden Underwater Courtyard, a submerged monumental stone courtyard enclosed by ruined multi-level arcades and deep vaulted corridors. A broad cracked stone-paved floor fills the foreground and extends into the open central courtyard. At the left foreground, a low flight of stone steps rises beside a large overgrown stone planter toward the left arcade corridor. From the left middle ground, a longer straight stone staircase climbs to an elevated level, connecting with a narrow passage and additional arched openings above. In the central background, stacked stone galleries, columns, and large arches form a multi-level architectural facade overlooking the courtyard. On the right, massive stone piers and deep shadowed arcades border the open space, with low steps and carved stone planters positioned beneath them. Eroded masonry blocks, carved cornices, column capitals, hanging vines, algae, and aquatic vegetation cover the structures. Bright turquoise underwater light enters through the open upper area, casting rippling illumination across the floor and stairways while fish move through the courtyard and between the surrounding arches