How do submarines know where they are? @veritasium

How do submarines know where they are? @veritasium

Uploaded August 2026 | Updated September 2026, 3 weeks ago

How does a submarine find its way 600m deep in the ocean?

Surfacing is obviously the easiest way but not when you want to stay hidden.

So how do a crew balance concealment and pathfinding?

How do submarines know where they are?

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How do submarines know where they are?