An underwater city powered by renewable energy sources in a post-apocalyptic world#underwater city #renewable energy #post-apocalyptic #future society #environmental sustainability #future

An underwater world teeming with colorful mermaids and sea creatures#fantasy #underwater #mermaids #sea creatures #vibrant

Photograph a vibrant coral reef teeming with life and color, showcasing the wonders of the underwater world#underwater #coral reef #marine life #biodiversity #vibrant