At U.S. Submarines have developed the world's first personal luxury submarines, it named the Phoenix 1000. The Phoenix 1000 is a 65-meter (213') personal luxury submarine. The total interior area of the submarine is in excess of 460 square meters (5000 square feet) on four levels and is able to dive up to 1,000 feet. The significant volume, coupled with very large acrylic viewports, and the potential for relatively large open spaces, results in a vehicle as luxurious as the finest of motor yachts. The Phoenix is capable of making trans-Atlantic crossings at 16 knots yet can dive along the route and explore the continental margins of some of the most fascinating waters on earth. It would be suitable for use as an exclusive submarine cruise ship or as a charter yacht. The estimated price of the Phoenix is $78 million.