|For the myth in GTA III, see Ocean Portal (GTA III).|
The Ocean Portal is a proven myth in Grand Theft Auto: San Andreas. The myth is about when a player swims really deep into the ocean, they don't drown, instead, they go through the sea floor, and suddenly get teleported to a different area of the map. The myth originated from the Bermuda Triangle myth investigations and attempts from players to reach Liberty City.
The player, who started the myth was actually just trying to fly to Liberty City. He never made it because his plane crash landed into the ocean. However, instead of drowning, his airplane sunk to the bottom of the ocean went through the sea floor, and then he was teleported back to San Andreas. When myth hunter Mike94Chuck investigated, he also was teleported back to San Andreas.
If the player flies far enough out into the ocean, the ocean floor becomes unsolid, so the player can sink through it. However, the space beneath the unsolid sea floor is Blue Hell, so the sea floor acts as a large entrance to Blue Hell. When the player enters the Blue Hell area, he gets teleported to a random area of the map. This is a game mechanic that prevents players from falling through Blue Hell indefinitely if they ever enter it by accident.