Create a futuristic underwater hotel that is designed to offer a unique and immersive experience for guests. The hotel should be shaped like a sleek, modern submarine, with a transparent exterior that allows guests to view the marine life around them. The rooms should be equipped with state-of-the-art technology, including virtual reality equipment that allows guests to explore the surrounding underwater world. The hotel should also feature an underwater restaurant and bar, where guests can enjoy meals while surrounded by the vibrant colors and forms of marine life. The hotel should be situated in a deep-sea environment, with a variety of coral reefs and sea creatures visible through the transparent walls.