It is the setting of Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness and Explorers of Sky. In Pokémon Super Mystery Dungeon, it can be visited at any time on the Lapras Travel Liner after purchasing the Grass Pass.
Locations
The Grass Continent in Pokémon Mystery Dungeon: Explorers of Time and DarknessThe Grass Continent in Pokémon Mystery Dungeon: Explorers of Sky
During the story, a place called the Eastern Forest (Japanese: ひがしのもりEastern Forest) is mentioned, but it is never accessible to the player. Additionally, the game identifies the desert area as the Arid Area, (Japanese: かんそうちたいArid Area) the northeastern part of the continent as the Forest Area (Japanese: しんりんちたいForest Area) and the icy island as the Icy Area (Japanese: ひょうせつちほうIce and Snow Area). In Time and Darkness only, the volcanic island is identified as the Volcanic Area (Japanese: かざんちたいVolcano Area).