It is not huge. but to get to the titanic you have to go to the depth of 12,500 feet. if you drop in the water at 6:00 a.m., how long does it take to get there? well, i wish i knew. you are not going through any sort of decompression. you are sinking like a stone. so i don t have exact data on that. even so, maybe it s hours. bill: the reason why we ask that question is because maybe they had reached the site or maybe they were only halfway there. i don t know what that answer is. if there were only halfway there, then you end up drifting. and that becomes a much more difficult problem. i called the navy. i m the only nuclear marine submarine i implored them to have one of our submarines be out listening. the best way to cover the most ....