The Northern Cavern is a location in the Zahhab Region Depths in Endless Ocean 2. It is a small, dead-end cave found in the North Crevasse at a depth of about 480 feet, or roughly 146 meters, at coordinates B-1, in the south-eastern quarter of the coordinate.

Several Popeye Grenadiers make their homes here. As well as this, a Megamouth Shark patrols the area and can be seen entering and leaving the cave.

The Northern Cavern has a corresponding cave in the South Crevasse, known (rather obviously) as Southern Cavern.