one company is offering the chance to dive 12,500 ft below the surface of the sea to explore the ship at the bottom of the atlantic .
the tour takes in sights like the famous grand staircase , the ship 's huge anchors and the marconi room , from which the world 's very first sos was broadcast .
the once-in-a-lifetime privilege is being offered by luxury concierge service , bluefish , and does not come cheap , setting you back a whopping £ 41,000 -lrb- $ 60,000 -rrb- .