Requirements:
*1x Seaglide
*1x Repair tool (optional, but reccommended.)
*1x Hatch or Moonpool
*A base so large the entry animations are skipped (only needed with Hatch method).
*Some way to damage said base (I find it easiest with the Prawn's default claw arm, or throwing a fish at it with the Propulsion Cannon).

How to execute:
To start, you need to purposefully breach your base, preferably near a bulkhead to reduce the area that's flooded. Once the breach has been made, seal it with the repair tool, pull out your seaglide, and attempt one of the following:
1. Hatch: Try to exit the base while bobbing in the water. It's easiest when the passage is 1/2 to 3/4 full.
2. Moonpool: Simply pop out of the water once, then try to swim out through the pool itself without touching the hull (at least until you get outside).
Regardless of your chosen method. If it works, you should now have a significant speed boost for as long as you have a seaglide.

Pros:
*Massive boost in speed. Outswimming a Seamoth with no effort.
*Can leap so high into the air you can board the QEP's exterior structure.
*Can switch to another tool, enter a Seamoth or Prawn, or even drop the Seaglide altogether, and retain your speed boost when you regain it.
*Because the flood effect doesn't reach all the way to the ceiling, Moonpool method can be permanently flooded if you so desire.
*Moonpool method, if permanently flooded, can be attatched to a larger base if a pair of bulkheads are placed together as a makeshift airlock.

Cons:
*Game may fail to load certain sections in time for your arrival if used for long-distance travel, just give it time and it should load. Just don't save your game with unloaded terrain nearby or the effect might become permanent.
*Speed boost is lost upon entering a Cyclops, or simply leaving the water altogether.
*Anyone with half a brain can board the QEP by just going up the hill behind it.
*Execution method requires purposefully breaching your base.
*Hatch method can't be used with High graphics settings, as it prevents the animations from being skipped.
*If attatched to a larger base, the Moonpool method will cause all lights to dim until it's repaired, in addition to the constant hissing from the breaches themselves.

Requirements:
*1x Habitat Builder
*1x Bulkhead
*1x Hatch
*2x Basic Compartments (exact kind doesn't matter)
*1x Foundation
*1x Full-sized seabase (optional)

How to execute:
Construct your foundation near a hill or cliff so that you can go to and from the ground to the base easily (once you've gotten used to free-roaming the ocean like a Prawn, you can build higher up). Build two basic compartments end to end so that you can go between them, making sure the foundation is under both of them, then put the hatch on the one you don't plan on deconstructing. Once everything is set up, go inside and set up the bulkhead in between them so the door opens towards the hatch, but don't construct it. Once the bulkhead is in place, fully deconstruct the opposing passage (tip; you can aim through the bulkhead if it's fully built, opened, then partially deconstructed), then fully construct the bulkhead. If you did everything right, the bulkhead should allow you to step out into the open ocean as if you were still inside the base.

Pros:
*Practically the entire ocean becomes one giant seabase.
*Both interior and exterior components can be put side by side without issue.
*By going backwards, you can swim inside the base, or send in a camera drone from the Scanner Room, if you'd rather not drown.
*By making walls out of Compartments, stacked two-high, you can build an entire open-air base using foundations, constructing it as if it were on land, but with the benefit of being able to add underwater components like large growbeds and floodlights.

Cons:
*Game still sounds like you're inside the base, including echoes, metallic footsteps when sprinting, etc.
*If you are unable to reach a bulkhead, hatch, or Cyclops, or lack a habitat builder with which to build a new hatch, while the glitch is in effect, you'll be stuck on the ocean floor.
*Attempting to enter a vehicle while under the effects of the glitch (only tested with Seamoth so far) will cause it to spaz out and fling you into the stratosphere, potentially landing you in or near the empty expanse beyond the crater's edge. Assuming the fall didn't kill you already.

Requirements:
*1x Cyclops
*1x Seamoth or Prawn (optional)
*1x Camera Drone (optional)

How to execute:
Enter the Cyclops via your chosen method, then drive around and look for a nice flat area you can land on. Once the Cyclops is resting on the bottom, exit the sub via your chosen method.

Pros:
*You can now:
**Swim around under the map.
**Avoid all of the nasty fishes like Bonesharks, Crashfish, and Reapers.
**Easily spot missed resources
**Easily get back above ground by swimming through the terrain, as the collision only goes one way.
*If you:
**Bring a camera drone with you, it can be kept there for as long as it's battery lasts.
**Line it up right, you can use this with the Prawn to fall down to the Primary Containment Facility, and then use the master arch in the aquarium to get back up.

Cons:
*Deployed camera drones can't be recharged without returning to the seabase.
*If you intend on using the Prawn to rapidly descend to the Primary Containment Facility, or any subterranean location, you will need a radio signal or player-deployed beacon to line up with, or you could potentially miss your target and fall out of the map entirely.

If you found these glitches to be fun, then I'm happy to have helped. If you think that a glitch is a glitch regardless of it's effects, then perhaps you should read this[tvtropes.org] before voicing your opinion.

And to the game's developers: These glitches are designed to provide amusement, they do nothing to harm the player by simply existing, their only harm comes from the players themselves. Fixing them serves no purpose except to make a bunch of players mad.