some_guyTIL that the titanic is nearly 430m (690k) below the surface of the ocean
I think you may have misread, the wreck is about 3.8km deep (5 mile or so). It’s 690km away from the nearest cost laterally.
Your numbers are seriously wrong in relation to each other.
Oh the 430m is mile? I read it as meter and was confused by the 690k