Where to Find Lithium in Subnautica 2

Subnautica 2 Guide

How to survive Great Jaw runs and transition to safer late-loop lithium farming.

Quick answer

Early-game lithium is concentrated at The Great Jaw. Players usually fail by overcommitting inside the maw; the safer play is a quick in-and-out grab cycle with mobility prep, then moving to volcanic/hot cave routes once Heat Tolerance is unlocked.

Verified against the source list below on June 8, 2026.

Route cards

Great Jaw grab

The early answer is a quick Great Jaw sweep.

Head in with a clear exit plan.
Take the lithium you can reach safely.
Leave before the route gets greedy.

Heat-tolerance phase

Later, transition to hot cave loops for steadier farming.

Wait for the route to become safe enough to repeat.
Use the new loop for backup stock.
Treat the early route as a bridge, not the whole plan.

Avoid common failures

Most bad lithium runs fail because the player stays too long.

Set a timer or target before departure.
Pair the route with another objective.
Use short runs instead of one deep gamble.

Verification

Last verified: June 8, 2026

Where to Find It

Early phase: route to The Great Jaw and treat each dive as a timed extraction, not a long exploration detour.
Bring mobility + oxygen contingency (fins, Air Bladder backups) so a bad current read does not end the run.
Mid-game phase: once Heat Tolerance path opens, pivot to hot caves below Tadpole Pens where lithium density is higher and repeatability improves.

How to Use It

Budget lithium for depth and progression-critical upgrades first; avoid burning it on convenience crafts.
Do 2-3 short lithium runs instead of one greedy expedition so one mistake doesn’t wipe your whole session.
Pair lithium farming with other deep-route objectives to reduce dead travel time.

Notes

Biome routing in Early Access can shift after balance patches, so re-check pathing after major updates.

FAQ

Is Great Jaw the only early source?

Current tested guides place early accessible lithium there; later progression opens better zones.

What’s the biggest lithium run mistake?

Entering without an exit plan and oxygen fallback tools.

When should I stop farming Great Jaw?

As soon as Heat Tolerance unlocks your more stable hot-cave loop.