This guide will let you know where to find the Water Filtration Machine in Subnautica.
Starting from the coral tube sticking up out of the water, you want to head between southeast and south or 2 in half bumps to the right of southeast until you reach a hole in the Grassy Plateau’s that will lead to the Jellyshroom caves.
It is recommended to have a sea moth with an Mk1 depth module, a high capacity O2 tank, a sea glide, and you will need a scanner.
The main threat you will encounter in the cave is Crabsnake which can grab and do damage to you. So you must try to avoid it if you see them near you.
The coordinates for the cave entrance are (112.8, -264.6, -359.9).
