The missing submersible is a small vessel designed to only hold five people for a day — two hours down, several hours exploring the Titanic and two hours back to the surface.
Last year, the founder of tour operator OceanGate Expeditions showed a CBS team the inside of a submersible used to visit the Titanic's wreckage. The CBS video shows a small chamber, with about as much space as a minivan.
There are no chairs or seats and the passengers sit cross-legged on the floor, having taken off their shoes before entering.
For such an advanced submersible, the interior is mostly bare and simple, with just one button and a screen on the wall. The rest of the vessel's operations are run on a handheld controller that looks remarkably similar to a gaming console, complete with colorful buttons.
There's only one small toilet in the vessel's front, which "doubles as the best seat in the house," according to an OceanGate webpage that's no longer available. It added that when the toilet is being used, they install a privacy curtain "and turn the music up loud."
It recommended that passengers restrict their diet before and during the dive "to reduce the likelihood that you will need to use the facilities."
Watch the video: