Sleeping with the fishes just got much more romantic. Lovers Deep is a new luxury submarine hotel room that rests 650 feet beneath the water. The vessel is moored in the Caribbean, with guests boarding in St. Lucia, but it can also be used to travel the seas. The submarine itself offers a guest bedroom and staff quarters for the captain, chef, and butler. An underwater getaway will set you back a cool $292,000 per couple per night.