The more space you have in your inventory the better. Diamond can be found as a large resource deposit. These easy to spot creatures can be found floating around the East. Diamond is a raw material found on the seabed of many Biomes. This gentle drifting giant is a massive whale-shaped creature that comes in at a respectable 30 meters long, but despite its intimidating size, its completely harmless.

Inventory Space - There are loads of Diamonds to pick up. The Glow Whale is by far the biggest friendliest fish in the freezing cold depths of Subnautica: Below Zero.

These two pieces of equipment will speed up the process, and help keep you clear of Squidsharks.

Swimming Fins and Seaglider - Extra speed is recommended for exploring deep waters.

Park the Seatruck as deep as you can so you can return for Oxygen.

The Seatruck - The Seatruck can be used as a temporary Oxygen-extender, though you will not be able to venture too deep into the Twisty Bridges without the Depth upgrade.

It's found in the spawn biome of the Twisty Bridges and crafted with Wiring, Silicone, and Fiber Mesh.

Rebreather - This piece of kit removes the Oxygen penalties for when you dive into deep waters.

Take or two or three, if you have the resources.

This tank will help you navigate for longer (and deeper) without worrying about Oxygen too much. Glacial Basin Koppa Mining Site Thermal Spires Thermal Spires Caves Tree Spires West Arctic Large resource deposits are a players best friend when it comes to finding Diamonds. The other option to find Magnetite is in the Deep Lilypad Caves. There are plenty of Oxygen Plants so we recommend traveling to the Site in your Seatruck, then using the Seaglide to. The High Capacity O2 tank - Crafted with Glass, Titanium, and Silver Ore. The Koppa Mining site ranges from about 150 meters - 300 meters in depth.What you need before going Diamond hunting in the Deep Twisty Bridges:

Subnautica below zero diamond locations