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Biomes

Subnautica 2 Coral Gardens Biome Guide: Resources, Creatures and Exploration Tips

Updated: 2026-08-114 sections

The Coral Gardens is one of the most visually stunning biomes in Subnautica 2, featuring an extensive underwater garden of bioluminescent coral formations that create a surreal, otherworldly landscape. Located in the eastern region of the map at depths ranging from 50 to 150 meters, the Coral Gardens serve as a transitional biome between the shallow Safe Shallows and the deeper, more dangerous biomes to the east. The biome is characterized by towering coral pillars that rise from the seafloor to near the surface, creating a forest-like environment with natural corridors and clearings.

The visual design of the Coral Gardens is dominated by three types of coral: tube corals that grow in vertical columns up to 30 meters tall, fan corals that spread horizontally from the pillars in wide, flat surfaces, and brain corals that form large spherical formations on the seafloor. All three coral types emit bioluminescence in varying colors, with tube corals glowing blue, fan corals emitting a warm orange light, and brain corals pulsing with a soft green luminescence. This combination creates a multi-colored light show that is visible from a considerable distance, making the Coral Gardens easy to locate even without coordinates.

The water in the Coral Gardens is notably clearer than in surrounding biomes, with visibility extending to 40-50 meters under normal conditions. This clarity is due to the filtering effect of the coral formations, which absorb particulate matter from the water. The clear water makes navigation easier but also means that creatures can detect the player from greater distances, as there is less natural cover from visual detection. Players should be aware that the clear water works both ways: you can see creatures coming from far away, but they can also see you.

The temperature in the Coral Gardens is moderate, with no thermal hazards or extreme cold zones. The current is gentle, with a slow east-to-west flow that can be used to conserve energy when traveling in that direction. The seafloor is composed of fine white sand mixed with coral fragments, providing a stable surface for base construction. The biome's aesthetic appeal and moderate danger level make it a popular choice for players looking to build a scenic secondary base, and the EA 1.1 update's addition of a Biolab here has further increased its strategic importance.

Coral Gardens Biome Overview: Depth, Location and Visual Features

The Coral Gardens is one of the most visually stunning biomes in Subnautica 2, featuring an extensive underwater garden of bioluminescent coral formations that create a surreal, otherworldly landscape. Located in the eastern region of the map at depths ranging from 50 to 150 meters, the Coral Gardens serve as a transitional biome between the shallow Safe Shallows and the deeper, more dangerous biomes to the east. The biome is characterized by towering coral pillars that rise from the seafloor to near the surface, creating a forest-like environment with natural corridors and clearings.

The visual design of the Coral Gardens is dominated by three types of coral: tube corals that grow in vertical columns up to 30 meters tall, fan corals that spread horizontally from the pillars in wide, flat surfaces, and brain corals that form large spherical formations on the seafloor. All three coral types emit bioluminescence in varying colors, with tube corals glowing blue, fan corals emitting a warm orange light, and brain corals pulsing with a soft green luminescence. This combination creates a multi-colored light show that is visible from a considerable distance, making the Coral Gardens easy to locate even without coordinates.

The water in the Coral Gardens is notably clearer than in surrounding biomes, with visibility extending to 40-50 meters under normal conditions. This clarity is due to the filtering effect of the coral formations, which absorb particulate matter from the water. The clear water makes navigation easier but also means that creatures can detect the player from greater distances, as there is less natural cover from visual detection. Players should be aware that the clear water works both ways: you can see creatures coming from far away, but they can also see you.

The temperature in the Coral Gardens is moderate, with no thermal hazards or extreme cold zones. The current is gentle, with a slow east-to-west flow that can be used to conserve energy when traveling in that direction. The seafloor is composed of fine white sand mixed with coral fragments, providing a stable surface for base construction. The biome's aesthetic appeal and moderate danger level make it a popular choice for players looking to build a scenic secondary base, and the EA 1.1 update's addition of a Biolab here has further increased its strategic importance.

Resources Available in Coral Gardens

The Coral Gardens biome offers a diverse range of resources that make it a worthwhile destination for both early-game and mid-game players. The biome's resource profile is unique in that it includes both organic materials (from coral and plant life) and mineral resources (from rock formations embedded in the coral structures). This combination makes the Coral Gardens one of the most efficient biomes for gathering materials, as players can collect multiple resource types in a single farming run.

Coral samples are the most abundant resource in the biome, harvested from the three coral types using a survival knife. Tube coral samples are used in crafting medical supplies and base decoration modules. Fan coral samples are required for the fabrication of silicone rubber, a component used in numerous crafting recipes. Brain coral samples can be processed at a fabricator to produce salt, providing a convenient alternative to searching the seafloor for salt deposits. Each coral formation yields 2-3 samples when harvested, and corals respawn approximately every 45 minutes.

Limestone deposits are found at the base of coral pillars and on the seafloor between formations. These deposits yield titanium and copper ore in equal proportions (50% each), making the Coral Gardens a reliable source of both metals. The density of limestone deposits in the Coral Gardens is approximately 60% of that in the Safe Shallows, but the additional organic resources more than compensate for the lower metal yield. Sandstone outcrops are also present in smaller numbers, yielding silver, lead, and gold.

Copper is particularly abundant in the Coral Gardens, with nearly every limestone deposit having a 50% chance of yielding copper ore. This makes the biome an excellent destination for players who need copper for wiring, batteries, and electronic components. Rare plant seeds can also be found growing on the fan corals and in crevices between formations. These seeds include the Coral Anemone Seed, the Fan Coral Spore, and the rare Glow Tile Seed, all of which can be planted in an alien containment unit for sustainable farming. The Glow Tile in particular is valuable, as it produces a natural light source that can be used to illuminate base interiors without consuming power.

Creature Encounters and Dangers in Coral Gardens

While the Coral Gardens are not as dangerous as the Sparse Plains or the Deep Trench, they are home to several mid-tier predators that pose a meaningful threat to unprepared players. The biome's clear water means that creatures can detect the player from greater distances, and the coral pillars that provide cover can also conceal approaching predators. Understanding the creature ecosystem in the Coral Gardens is essential for safe exploration and resource gathering.

Stalkers are the most common predator in the Coral Gardens, attracted by the metal-rich rock formations at the base of coral pillars. They patrol in loose territories of approximately 50-meter diameter and detect players at a range of 20 meters. Stalkers in the Coral Gardens are slightly more aggressive than those in the Grassy Plateaus, likely due to competition for food sources. They typically attack in a lunge pattern that can be dodged by swimming perpendicular to their charge direction. Carrying metal objects (such as titanium or salvage) increases the likelihood of Stalker attacks, as they are drawn to metal.

Bonesharks are the second most common predator in the Coral Gardens, particularly in the deeper sections (100-150 meters). Bonesharks are more dangerous than Stalkers due to their circling attack pattern and tendency to hunt in pairs. They detect players at 25 meters during the day and 35 meters at night. The coral pillars provide natural cover that can be used to break line of sight with Bonesharks, allowing players to evade them by weaving between formations. If attacked, swim toward the seafloor and use the brain coral formations as obstacles to slow the pursuing Boneshark.

Smaller creatures in the Coral Gardens include Peepers, Boomerangs, and Reginalds, which are passive food sources that can be caught for sustenance. The biome also features several unique fauna species, including the Coral Crawler, a small crustacean that lives on the surface of brain corals and can be harvested for food. The Anemone Fish, a brightly colored species that lives among fan corals, provides a small amount of health restoration when consumed raw. None of these smaller creatures pose any threat to the player.

The most significant danger in the Coral Gardens is not from individual creatures but from the potential for multiple encounters to overlap. Because the biome's clear water allows creatures to detect the player from far away, it is possible to attract the attention of multiple Stalkers and Bonesharks simultaneously, creating a situation where attacks come from multiple directions. To avoid this, move slowly and deliberately through the biome, pausing frequently to scan your surroundings for approaching predators. The Camouflage biomod is highly recommended for Coral Gardens exploration, as it significantly reduces the detection range of all creatures in the biome.

Exploration Tips and Recommended Equipment

Exploring the Coral Gardens efficiently requires appropriate equipment and a thoughtful approach to navigation. The biome's moderate depth and clear water make it accessible to players with basic equipment, but maximizing your farming efficiency and safety requires specific preparations. This section covers the recommended equipment loadout, navigation strategies, and the new Biolab added in the EA 1.1 update.

For early-game players (before obtaining a Seamoth), the recommended equipment includes a Seaglide for fast travel, a Standard O2 Tank or High Capacity O2 Tank for extended dive time, a Survival Knife for harvesting coral and defending against Stalkers, and a Scanner for identifying resources and scanning creatures. A Flashlight is useful for exploring the darker areas between coral pillars, but be aware that it may attract curious creatures. Travel in a zigzag pattern between coral pillars to maximize the number of resource nodes you encounter, and surface frequently to replenish oxygen.

For mid-game players with a Seamoth, exploration becomes significantly more efficient. Equip the Seamoth with a Pressure Compensation Mark I (for access to the deeper sections of the biome) and a Storage Module for carrying harvested resources. Park the Seamoth in a central location and explore on foot from there, returning periodically to deposit resources and replenish oxygen. The Seamoth's speed also allows for quick escapes if you attract the attention of multiple predators. Install a Sonar module to map the coral formations and identify resource-rich areas before committing to a farming route.

The Coral Gardens Biolab, added in the EA 1.1 Adaptive Measures update, is located at approximately 100 meters depth in the central area of the biome. This Biolab specializes in stealth and defensive biomods, including the Camouflage biomod and the Predator Deterrence biomod. The research mission at this Biolab requires scanning 15 creatures native to the Coral Gardens, including Stalkers, Bonesharks, and several smaller fauna species. Completing this mission unlocks the Camouflage biomod, which is arguably the most valuable passive biomod in the game for exploration in dangerous biomes.

Base construction in the Coral Gardens is popular due to the biome's aesthetic appeal and moderate resource availability. When building a base here, choose a location near a cluster of coral pillars that provides natural cover from predators. Reinforce the base with foundation pieces and hull reinforcement modules, as the coral formations can shift during storms (a random weather event that occurs periodically). Install a Scanner Room to locate nearby resource deposits and a Bioreactor or Solar Panels for power, as the biome's clear water allows good sunlight penetration to moderate depths. A Moonpool is recommended for vehicle charging and repair, and a Battery Terminal will keep your tools powered during extended farming sessions. The Coral Gardens base serves as an excellent staging point for expeditions into the deeper eastern biomes, providing a safe resupply point between deep exploration runs.

Frequently Asked Questions

The Coral Gardens are found at medium depth, approximately 50-150 meters, in the eastern region of the map. The biome is easily identifiable by its towering bioluminescent coral pillars that glow in blue, orange, and green colors.

Coral samples, limestone, copper, and rare plant seeds for farming are the primary resources in this biome. The biome also yields titanium, silver, and gold from sandstone outcrops, and brain coral can be processed for salt.

Yes, several mid-tier predators patrol the Coral Gardens, including Stalkers and Bonesharks. The clear water allows creatures to detect players from greater distances, so move slowly and use coral pillars as natural cover to avoid multiple simultaneous encounters.

Yes, the EA 1.1 update added a new Biolab in the Coral Gardens, one of two new Biolab locations. This Biolab specializes in stealth and defensive biomods, including the highly valuable Camouflage biomod that reduces all creature detection ranges by 40%.