How deep down in water can a narwhal live?

Answer 1

A depth of 4,500 feet/1,500 meters is the furthest down that a narwhal can live. But that depth only can be tolerated for 20-25 minutes at a time. That depth also is reached only in pursuit of narwhal prey of the lower, midnight zone of the Arctic and North Atlantic Ocean waters. Typically, a narwhal favors the sunlit waters of the upper zone that goes down 600 feet/200 meters from the ocean surface.

Answer 2

Narwhals can dive to depths of up to 1,500 meters (4,920 feet) to forage for food underwater. They typically dive between 300-600 meters (984-1,968 feet) but have been known to go deeper.