An abandoned coastal aquarium complex with massive underwater tunnel structures reclaimed by the ocean, crystal-clear tanks now home to wild dolphins and sea lions swimming through ancient coral formations growing on rusted feeding platforms, thick cascading waterfalls flowing from broken filtration equipment into seawater pools, wild pelicans and herons nesting on collapsed concession stands, soft sunset casting golden and pink rays through broken glass walls illuminating floating particles, dramatic underwater perspective looking up through the tunnel ceiling at the structure above, hopeful and magical mood, solarpunk post-apocalyptic reclamation, rich teal and coral color palette, photorealistic details, awe-inspiring atmosphere