Grueling Grove

7 Pokémon can be caught at Grueling Grove in Hisui.

Grueling Grove sits in the northeastern Obsidian Fieldlands of Hisui, on a patch of land beside a river, with Horseshoe Plains to its west and Worn Bridge to its south. A U-shaped lake occupies its middle, and a smaller lake in the grove's innermost reaches contains a tiny island whose single tree conceals an Unown. The area is also the territory of an alpha Vespiquen, which figures in Mission 20, "The Researcher of Myths".