Trekker Marine Enterprises provides the marine industry's first turn-key solution for yacht-based submarine operation. Formerly limited to the upper reaches of the mega yacht community, submarines can now be ordered as standard equipment throughout TREKKER's entire range of adventure class yachts starting at only 65 feet in length. In keeping with our Cousteau-inspired mission every TREKKER has been engineered for submarine operation. Now the most incredible marine adventure is availiable for the mainstream yachtsman. This is the Triumph 3-man model rated for 1500 foot depths; literally the finest and safest of its kind