Poni Grove (Japanese: ポニの樹林 Poni Grove) is a location on Poni Island in Alola, located northeast of Ancient Poni Path and south of Poni Plains. It can only be explored after the player has become Champion.
In Pokémon Ultra Sun and Ultra Moon, the player and Hau arrive here at the behest of the Ultra Recon Squad to help them secure BlacephalonUS or StakatakaUM.
In Pokémon Ultra Sun, two Blacephalon appear here. They have an aura that gives them +2 Special Attack stages.
In Pokémon Ultra Moon, two Stakataka appear here. They have an aura that gives them +2 Defense stages.