Dark Hill (Japanese: くらやみのおか Dark Hill) is a dungeon in Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness and Pokémon Mystery Dungeon: Explorers of Sky. It is unlocked by beating Chasm Cave. It has 15 floors. Since it is located in the future, it cannot be revisited and no Pokémon can be recruited inside of this dungeon.
All the enemies in this dungeon are Ghost-type (except Gliscor and Claydol) which means most of the enemies can attack from within walls, and will often use Spite.
Along the way though this dungeon, players will encounter as many traps as they did in Chasm Cave.