The multi-passenger submarine is a third generation, Mark 3 submarine designed specifically for the tourist attraction. Its size has been optimized to carry 44 passengers and 2-crew on sightseeing expeditions beneath the sea to a maximum depth of 76 meters. In any location at which a passenger submarine operates, it is notably unique in its ability to capture a significant portion of the tourist arrivals. Across the globe, interest in the underwater world is growing rapidly. Today, travel tourism is the world’s largest single employer representing 6% of the world’s population and an annual turnover of two trillion dollars. The marine leisure sector is the fastest growing segment o f the travel industry, as is evidenced by the success and growth of public and private aquariums and marine parks, the cruise ship industry, seaside destination resorts, harbor and dinner cruises and sport diving. Tourist submarines constitute the only direct experience that most people will have with the undersea world. Passengers of any age and physical condition can enjoy a comfortable and safe experience that is so unique it boasts a 95+% satisfaction level. And after having carried millions of passengers, the industry enjoys a perfect safety record without a single serious injury to any passenger. No other marine leisure experience can compare with a dive on a contemporary tourist submarine, and wherever a tourist submarine operates, it is sure to be the most popular amenity in the area.