User blog comment:Subnauticaman32!/Hey I need help!!!/@comment-45063100-20200928190322

Get a prawn suit as fast as you can, you'll need it. Go to the Lost River and set up a base (either near an entrance that you have another base by or the Giant Cove Tree). Get as many upgrades as you can- you'll need the depth one, and I'd also recommend the engine efficiency, thermal energy, and jump ones (also get a drill and grappling hook, and keep some space in the storage to swap them out in case you need to fight something, the default claw arm does the most damage). Behind the cove tree is an entrance to the inactive lava zone, and there should be a big "bubble" shape in a pit that has an entrance to the lava lakes, where the aquarium is. You'll need a bunch of tablets, ion cubes, and stuff that I don't remember, though.