Find the Great Jaw Leviathan in Subnautica 2, learn how to avoid its trap, collect Lithium safely, and unlock the Portable Oxygen Dispenser blueprint.
Table of Contents
What Is the Great Jaw in Subnautica 2?
| Property | Details |
|---|---|
| Type | Mollusc |
| Classification | Leviathan |
| Behavior | Aggressive |
| Location | Tufa Towers biome, 350m southwest of Lifepod |
The Great Jaw is a massive clam Leviathan that sits stationary on the seafloor. Unlike other Leviathans, it does not swim or chase you, but it will trap and poison you if you are not careful. Its interior holds some of the best early Lithium deposits in the game and the blueprint for the Portable Oxygen Generator.
Great Jaw Location
The Great Jaw is found in the Tufa Towers biome, approximately 350 meters southwest of the Lifepod, next to the Cicada Wreck (Canteen).
The easiest way to navigate there is to activate the Wander Blackbox signal in the Signals tab, follow the cliff south until you reach the spider-crab-shaped coral covering the Wander pit, then turn south over the cliff.
Recommended Gear For Great Jaw Leviathan
| Item | Why You Need It |
|---|---|
| High Capacity Air Tank | Blueprint is on a Data Card in the wreckage northeast of the Great Jaw. Below 100 meters, oxygen drains faster than normal. |
| Sonic Resonator | Required to break the Lithium deposits inside. |
| Air Bladder | Emergency escape if the shell closes on you. |
| Tadpole | Not required, but significantly speeds up the trip to and from the area. |
How to Scan the Great Jaw
You do not need to enter the Great Jaw to scan it. Face the outer shell and use your Scanner.
What Is Inside the Great Jaw?
The interior of the Great Jaw has a small circular structure in the center covered in bright pink tendrils. Inside and around it, you will find:
| Item | Details |
|---|---|
| Lithium Deposits |  Break with the Sonic Resonator or Feedback Resonator to collect. Firing the Resonator will not trigger the tendrils. |
| Portable Oxygen Dispenser Fragment 1 |  Sitting just outside the central pod. Scan it with the Scanner. |
| Metal Salvage |  Can be collected and processed into Salvaged Titanium. |
| Portable Oxygen Dispenser Fragment 2 |  Inside the pod, beneath a piece of Metal Salvage. Scan both to unlock the blueprint. |
| Naheema Databank Entry |  At the foot of the Great Jaw Leviathan. You can also scan the Tadpole fragment if you don't have one yet. |
Survival Tips
The Great Jaw's central pod is ringed with purple rope-like tendrils. Touching any of them triggers the clam to snap shut, trapping you inside while dealing poison damage. Here is how to handle this leviathan safely:
Move Slowly
The tendrils will trigger at the slightest contact so it's usually best to take off your Wakemaker if you're venturing inside the pod.
Watch Your Rear When Firing
The Sonic Resonator's recoil can push you backward through a tendril. Make sure the space behind you is clear before shooting.
Use the Air Bladder Immediately if Trapped
Activate it to rise quickly out of the clam's grasp before the poison kills you.
Wait for the Shell to Reopen
After it closes, the Great Jaw will open again. Re-enter carefully to collect anything left behind.
| Notice! | Subnautica 2 is in Early Access. Great Jaw behavior and loot contents may change in future updates. |
|---|
Related Articles
Recommended Guides
 Walkthrough (Early to Late-Game) |  Plant Farming Guide |  Cooking and Recipes Guide |
 Best Biomods |  Best Tadpole Upgrades |  Metal Farm Guide |
| Progression & Priorities | ||
|---|---|---|
 Early Game |  Mid-Game |  Endgame |
Lists
 All Leviathans |  All Items List |  Biomes & PoI List |
 Blackbox List |  Recipe Data Cards (Blueprints) |  Vehicle List |
 Buildings & Facilities List |  Best Base Locations |
Salt
Silver
Copper
Lead
Lucifer Rotsac
Conduit Crystals
Creature Enamel
Enameled Glass
Troilite
Celestine
Multiplayer Guide
How to Eat Food (Digestion)
How to Craft Items
Drinking Water Guide
How to Craft Air Tank?
How to Get Basic Fins
Scanner Station Guide
How to Manage Your Oxygen?
Base Guide
Alien Ruins
How to Use Coordinates
Tadpole Guide
How to Get More Storage
How to Get a Rebreather
Bioscanner Guide
Night Survival Guide
How to Heal
Angel Comb Guide
How to Power Your Base
How to Recharge Batteries and Tools
How to Get the Repair Tool
World Tree Guide
Flashlight Guide
Strong Acid Guide
How to Get Heat Tolerance
Scanner Guide
How to Get Tadpole Depth Module Mk. 2
How to Get a Wakemaker
How to Get Fibrous Pulp
Specs Requirements
New Game Features
Is There Crossplay?
Supported Devices
Update & Roadmap
How Long to Beat?
Can You Play Subnautica 2 on PS5 and PS4?
Is Subnautica 2 on Xbox?
Is Subnautica 2 on Steam?
Is Subnautica 2 on Switch?
