Mystical Forest (Japanese: 神秘の森Mysterious Forest) is a dungeon in Pokémon Super Mystery Dungeon that is located on the Air Continent. When the player, their partner, and Archen accidentally visit the Air Continent in Chapter 13, they head to this dungeon to investigate after they witness Latias and Latios crashing into the forest. Time Travel Lake (Japanese: ときわたりの湖Time Travel Lake) is said to be in the middle of the forest where Celebi resides.
At the end of the dungeon, they find that Latias and Latios have been turned to stone. They also encounter Entei, who is looking for Celebi.