However, its most expensive model is the Triton 36000/2, which is a full ocean depth model, but will cost one Rs 2.3 billion. Unlike other submarines that have a single viewport, this model has a triple wide-angle installation. This means you don’t have to peak outside to catch a glimpse of a whale swimming by you; your submarine bubble will look like a television screen displaying a school of feasting whales from a Blue Planet II episode — the same episode that has also been shot in a Triton. Ray Dalio, US billionaire investor and a proud Triton submarine owner, is the founder of OceanX, an ocean explorative initiative that has filmed the popular BBC series on marine life. The submarine has an array of 10 electric thrusters to provide motion in all directions, which means you get to drive the vehicle and feel like you’re in an action hero movie.