We immerse ourselves in the underwater world of Hotel Atlantis in Dubai. Perched on top of a giant, man-made palm tree-shaped island in the Arabian Gulf, this hotel made the biggest global splash EVER when it opened just twelve years ago.We immerse ourselves in the underwater world of Hotel Atlantis in Dubai. Perched on top of a giant, man-made palm tree-shaped island in the Arabian Gulf, this hotel made the biggest global splash EVER when it opened just twelve years ago.