If you’ve spent hours wandering Subnautica Below Zero’s frozen biomes hunting for rare salvage and story clues, you’ve probably already heard rumors of the abandoned Mercury 2 wreck. Tracking down the mercury 2 subnautica below zero location is one of the most rewarding side exploration tasks in the game, packed with useful crafting materials, story logs, and even a few hidden upgrades you won’t find anywhere else. I spent three cycles wandering the wrong ice caves before I stumbled on it on my fourth playthrough, so I put together this guide to save you the frustration of wasting oxygen and food on dead ends.
Preparations You Need Before Searching for Mercury 2
You don’t want to get halfway to the wreck only to realize you don’t have the right gear to survive the cold, fend off predators, or access locked areas. I learned this the hard way when I showed up with only a standard oxygen tank and had to turn back 10 minutes in because I ran out of air while avoiding a Ice Worm attack. The good news is you don’t need endgame gear to reach this location, but a few key items will make the trip far less stressful. You should bring all of the following:
- High Capacity O2 Tank: The wreck sits 180 meters below the surface, and you’ll spend at least 15 minutes exploring the area around it, so extra oxygen is non-negotiable.
- Cold Suit Mk1 or higher: The biome around the wreck has consistent -15C temperatures, even in the water, so you’ll take constant cold damage without proper protection.
- Repulsion Cannon or Propulsion Cannon: Several blocked entrances to the wreck are blocked by loose metal debris you’ll need to move to get inside.
- At least 3 first aid kits: Between ice worms, aggressive Squidshark, and occasional falling ice shards, you will take damage on this trip.
You can also bring a Seatruck with a storage module if you want to carry back all the salvage you find, but it’s not required if you’re only going for story logs and the upgrade module hidden inside. If you don’t have a Seatruck yet, you can still make the trip with just your seaglide, as long as you stick to the water path instead of crossing the ice above the basin.
Exact Mercury 2 Subnautica Below Zero Location Coordinates and Navigation
The Mercury 2 wreck is located in the Glacial Basin biome, right on the edge of the Arctic Kelp Forest border. If you’re starting from your Drop Pod, head directly southwest for approximately 1200 meters until you see the large, cracked ice shelves that mark the start of the Glacial Basin. If you use coordinates to navigate, the exact location of the wreck’s main entrance is at -320, -185, 790. You’ll know you’re in the right spot when you see large pieces of rusted metal sticking out of the ice and water, and you pick up distorted radio signals from the wreck’s surviving beacons. If you don’t use coordinates, look for the large, frozen leviathan skeleton half-buried in the ice near the biome entrance. The wreck is 200 meters directly west of that skeleton, so it’s hard to miss once you find that landmark. I usually mark the skeleton on my map first when I start a new playthrough, because it’s a useful reference point for multiple rare locations across the Glacial Basin. You don’t have to worry about getting lost if you follow the radio signals once you get within 500 meters of the wreck. The signals get stronger the closer you get, so you can just follow the audio cue if you don’t want to mess with coordinates.
What You’ll Find Inside the Mercury 2 Wreck
This wreck isn’t just a random piece of debris floating in the ice – it’s packed with useful loot and important story context that fills in gaps about what happened to the Alterra crew before you arrived on 4546B. I’ve run this exploration at least 8 times across different playthroughs, and I still find small logs I missed on previous runs sometimes. First, you’ll find four separate data logs scattered across the wreck’s three accessible levels. These logs follow the story of the Mercury 2’s crew, who were sent to investigate the disappearance of the original Mercury craft a few years before the events of Below Zero. The final log even gives you a clue for the location of a hidden Alterra cache with even more rare loot. You’ll also find a full set of Parallel Processing Unit parts, which you need to craft the Seatruck Depth Upgrade Mk3, one of the most useful mid-game upgrades for exploration. You won’t find these parts anywhere else in this density, so this trip cuts out hours of searching for random debris across the map. On top of that, there are over 20 pieces of titanium, 5 lithium ingots, 3 wiring kits, and a handful of diamonds scattered across the wreck. If you bring a storage module, you can carry all of it back and cut down hours of resource grinding for your next set of upgrades. Just make sure you check every small room, including the locked storage closet at the back of the second level. You can open it with the code you get from the third data log, so don’t leave without grabbing the contents inside.
Common Mistakes to Avoid When Traveling to Mercury 2
Even if you know the exact location, there are a few easy mistakes that can turn this quick exploration trip into a frustrating, run-ending disaster. I’ve made almost all of these myself, so I’m sharing them to help you skip the headaches. The biggest mistake I see new players make is heading to the wreck without a light source. The interior of the Mercury 2 is almost completely dark, and there are small gaps in the flooring you can fall through if you can’t see where you’re going. Even a standard flashlight works, but a headlamp is better so you can keep your hands free for collecting loot or fending off predators. Another common mistake is ignoring the Ice Worm warnings when you’re traveling across the ice above the wreck. Ice Worms can hear your movement if you run across the ice, so you should always walk slowly when you’re in the area, or travel through the water to avoid them entirely. If you see the ice start to ripple in front of you, turn around immediately and move in the other direction – you don’t want to get caught in an attack with no way to escape. Don’t waste time trying to open the blocked third level of the wreck either. That section is still frozen solid, and there’s no way to access it in the current version of the game, no matter what tools you bring. I spent 20 minutes trying to blast through the ice with a laser cutter on my first playthrough, and it was a total waste of battery. Finally, don’t forget to check the area around the wreck before you leave. There are three small debris fields within 100 meters of the main wreck that have extra salvage and even a couple of extra data logs most players miss. I didn’t find these until my third playthrough, and they add a lot of extra context to the Mercury crew’s story.
Tracking down the mercury 2 subnautica below zero location is one of the most satisfying mid-game tasks you can complete, and it gives you access to upgrades and resources that will make the rest of your playthrough far easier. You don’t need fancy endgame gear to reach it, just a little preparation and a clear sense of where you’re going. Next time you’re looking for a break from progressing the main story, take 30 minutes to make the trip. You’ll walk away with far more than you put into the exploration, and you might even find a few hidden details you didn’t notice before. Just don’t forget to bring extra oxygen, and watch out for those Ice Worms.
