[quote=shaggersback;1073083][quote=panama hat;1073011]
Quote Originally Posted by Bobcock View Post
3,000 and 7,000 kilometres deep
10,911 metres , Mariana Trench (between Japan and PNG) Around 11 kilometres deep and the deepest part of any ocean.

3000 - 7000 k deep ? If it were the case the black box would be easier to retrieve from Mars.
Do you like repeating what's been written before? I have highlighted the relevant part of my post just for you.

Quote Originally Posted by panama hat View Post
Quote Originally Posted by Bobcock View Post
3,000 and 7,000 kilometres deep
Now that is deep

Indeed . . . perhaps metres should be used instead of kilometres . . .