Although not "many" have done it before, this wasn't the first visit to the Titanic by this submersible, if I'm not mistaken this was the 14th
expedition.
a reply to: ArMaP
Didn't know! I'm surprised with as much news about how the sub was poorly designed, engineers fired for talking smack etc. the other missions were
successful.
I still wouldn't take my child with me on such a dangerous voyage nevertheless.