A solution for those who encounter a locked door on the way to Relith Science HQ, although it could have been unlocked earlier.
Block Shortcut Relith Science HQ
Note: Credit goes to >Observer.......
Problem
Going to find the secrets of Relith Science HQ, you can stumble upon a locked door (although it may have been opened earlier). What to do? Let’s go around and open it!
Solution
Let’s go from the control room to the left to the side.
Leviathan Reef, and then up towards Relith Science HQ.
Unfortunately this doesn’t work for me, as there’s no water to get through the barrier near the Science entrance. Very frustrating to get everything done and be blocked like this. There’s one switch somewhere I’m missing.