|This article is about the Deep Grand Reef. If this is not what you are looking for, see Grand Reef (Disambiguation).|
Though it lacks the Membrain Trees found in the Grand Reef, it shares the same Anchor Pods. The Deep Grand Reef is considerably more dangerous than the Grand Reef as it is home to many Crabsquids, capable of disabling electrical devices such as Flashlights and vehicles.
Spoiler alert: The following section contains story related material.
At the deepest point in this area, there is an entrance to the Lost River.