Exploration Tips

Exploring in Subnautica can be a risky business that can go sideways fast without some planning. When you're surrounded by predators and 500 meters below, an extra battery can make the difference between life and death. On top of this, Subnautica has a unique design that requires a thorough exploration of each area in order to fully access the next. This guide is intended to provide a helpful overview of each general area as well as tips and tricks you can employ to ensure that you're prepared for each new dive.

'''Note: This is not a general guide for the game. It is specifically meant to help in navigating the different areas and biomes of Subnautica.'''

Any items listed in an area's section are ones that the player has access to or can craft with the resources available in that area or in preceding areas.

Early On (Safe Shallows & Kelp Forests)
When you begin the game, you have very little in the way of swimming or diving capabilities. With only basic fins and about 45 seconds worth of oxygen, even visiting the ocean floor can be dangerous.

Inventory
While exploring the Safe Shallows and Kelp Forests, you should keep the following items in your inventory at all times. Don't be afraid to use them! Just make sure you replace anything you use as soon as possible.
 * 1 x First Aid Kit
 * 1 x Cured Fish (Peeper is best)
 * 1 x Water (Disinfected is best)
 * 1 x Battery

Area Hazards
The starting area may be called the 'Safe Shallows', but there are still some dangers to keep in mind. Below is a list of potential hazards you may face and the tactics/equipment you can employ to mitigate them.

Drowning

 * Craft a basic oxygen tank and fins immediately.
 * A high capacity oxygen tank will give you ample time to explore between surface trips.
 * An air bladder can help you reach the surface quickly in a pinch.
 * Use a pathfinder tool to help find your way out of cave systems.
 * The Seaglide* increases your swim speed dramatically (and can reach the surface faster than an air bladder).
 * A flashlight or flare can help with nighttime exploration.

Starvation/Thirst

 * Always keep at least one cured fish and one water with you at all times.

Predators

 * Always keep at least one first aid kit with you at all times.
 * One or two swipes from the survival knife will deter most aggressive enemies in this area.

Exploration
Starting out, exploring the ocean can be disorienting and strenuous; especially with little in the way of navigation and resources.

Returning to Important Locations

 * The crashed Aurora and your life pod provide a good point of reference to approximate a nearby location.
 * Physical landmarks can also be helpful to find nearby places, but without a very good memory it can still be difficult to remember the landscape.
 * The compass* can help immensely by giving you a directional heading; upon discovering a new location, simply note the direction and distance of your life pod.
 * Beacons* make navigation much simpler. Just place a beacon at a location you wish to note. I recommend using descriptive names to make different beacons easy to tell apart.

Making the Most of Each Trip

 * By keeping an extra bit of food and water in your inventory, you won't have to cut trips short due to hunger or thirst.
 * Check your batteries often and always carry a spare with full charge. The last thing you need is your Seaglide dying in the middle of a cave system or 500 m from your life pod.
 * Keep your inventory clear. It can be easy to lose track of free space when you're gathering supplies to craft a new tool; utilize a floating locker or the life pod's storage to store any materials you aren't currently using.

Leaving the Area
Before you move on to deeper waters, you should make sure that you are prepared for any challenges you might face.

Upcoming Hazards

 * Radiation
 * The radiation suit is needed to survive for long in areas close to the Aurora
 * Depth
 * Diving deeper than 100 m consumes additional oxygen. A rebreather can counter this.

Essential Gear
Before leaving this area, you should have the following equipment:
 * High Capacity Oxygen Tank
 * Seaglide
 * Beacons/Compass