SUBNAUTICA / EXPLORATION

Deep Brine

Some Lost River brine pools can harm an unprotected swimmer.

QUICK REFERENCEFirst SubnauticaReviewed 2026-10-28Reference / noindex

OVERVIEW

Understanding Deep Brine

Some Lost River brine pools can harm an unprotected swimmer.

This is an original reference for the first Subnautica. Your current depth rating, oxygen, available tools and navigation route determine when an objective is practical. Follow actual in-game PDA and Fabricator information for any values that vary by version.

PRACTICAL APPROACH

How to use this information

Scout routes and use appropriate vehicle or safe terrain rather than jumping into unknown liquid.

COMMON MISTAKES

What to avoid

Colorful pools are not guaranteed freshwater refuges.

CONTINUE ON VOLPEDIA

Related topics and walkthroughs

RESOURCESCrystalline Sulfur

A rarer deep-zone resource found around hazardous brine areas.

BIOMESLost River

An interconnected deep cave ecosystem with brine pools, fossils and alien-story routes.

EXPLORATIONBase Hull Integrity

Habitat parts and depth affect the stress placed on seabase structures.

EXPLORATIONBeacon Navigation

Beacons provide reusable visual landmarks when terrain looks similar.

EXPLORATIONCave Navigation

Tight, dark caves create orientation and oxygen risks.

EXPLORATIONCreature Avoidance

Many threats can be bypassed safely with distance, cover and deliberate timing.

EXPLORATIONDepth Rating

Vehicles are rated for certain water depths and can be upgraded with appropriate modules.

Back to Survival Systems

Independent Volpedia editorial encyclopedia about the first Subnautica, reviewed 2026-10-28. Unaffiliated with Unknown Worlds Entertainment. Category illustrations are original diagrams, not in-game maps, screenshots or exact creature portraits. No fabricated damage statistics, spawn probabilities or detailed map coordinates. References are documented privately and not shown as outbound research buttons.