The Cave of Origin (Japanese: 目覚めのほこらShrine of Awakening) is a cave near the north end of Sootopolis City. It is guarded by Wallace of Sootopolis Gym and is said to be the cave where life begins. Its opposite landmark is Mt. Pyre, said to be the place where life ends.
Residents of Sootopolis are not permitted to enter the Cave of Origin.
In Pokémon Emerald, the Cave of Origin is where Wallace can be found debating where Rayquazais located, until the player gives him a hint that it is at the Sky Pillar. However the player cannot enter the cave after awakening Rayquaza.
The Cave of Origin was mentioned in A Three Team Scheme!. A group of Team Magma members led by Tabitha and a group of Team Aqua members led by Shelly initially mistook a set of ruins on Dewford Island for the Cave of Origin, but when they failed to find what they were looking for from the ruins, they understood their mistake and left.
In the Generation III games, no background music plays on the bottom floor of this cave. In Pokémon Ruby and Sapphire, this is the only area in the game with this distinction. (In Pokémon Emerald, Birth Island also has no background music.)
As a result, if a Pokémon evolves or an Egg hatches here in these games, the evolution background music will play on the floor until the player leaves.
In Pokémon Omega Ruby and Alpha Sapphire, the player's PokéNav Plus will be unusable in the bottom floor due to electrical interference from the intense natural energy in the room.