Deep within the sea to the east of Los Santos lies a glowing hatch, a reference to the divisive television series LOST. You can find the hatch for yourself at the bottom of the sea, but you'll need Scuba Gear to find it.

Head over to the east coast, just to the south of the Human Labs and Research building. Swim out to where the water drops off. You'll have to look deep beneath the ocean, to the east of Sandy Shores. You'll know the hatch from a distance by its glowing handle.

While the hatch is a neat reference, you may not want to get in close to examine it - instead, it's best observed from a distance. Keep your space from the hatch and check it out. You can't interact with it, and if you approach it you will die just about instantly. Still, it's a pretty neat little reference.

Stay tuned for more GTA V tips, tricks and exploits, and be sure to check out our guides to getting infinite cash in GTA V, restoring your health instantly, and capturing the elusive P-996 Lazer military jet. And to all you PC players - let us know what you think of this potential PC release date for GTA V.