Conversation so far:
where does the indian ocean meet the southern ocean
In Australia, Cape Leeuwin is considered the point where the Indian Ocean meets the Southern Ocean.
where do other nations consider the meeting point of the indian and southern ocean to be
Most other nations and bodies consider the Southern Ocean to only exist south of 60°S.
where exactly is 60°S
The 60th parallel south is a circle of latitude that is 60 degrees south of the Earth's equatorial plane.

Question: do other oceans intersect at the line
Self-contained rewrite: do other oceans intersect with each other at 60°S