Underground Path (Kanto Routes 7-8)

The Underground Path (Japanese: ちかつうろ Underground Path) between Routes and  is located directly underneath Saffron City and terminates just to the east and to the west of Saffron City.

Route description
The path is a long, dark hallway that travels under Saffron City. Despite the cave-like lighting of the path, there is no threat of being attacked by wild Pokémon. Occasionally, by using an Itemfinder, items that s have dropped along the path can be found and retrieved.

In Generations and, this path was closed due to many ill-mannered Trainer s.

Differences among generations
The only difference across all four generations was the removal of the Underground Path as a playable area in Generations and. The reason is explained in a note from the Celadon Police left on the signpost to the Underground Path in.

There is no equivalent notice on 's entrance, though the signpost there does imply that it used to have one. It is possible that the s fought there are responsible since one of them comments about the police closing it down.

In the Pokémon Adventures manga
Although the Underground Path doesn't make an actual appearance in Pokémon Adventures, the map of 's journey in shows that he used it as a shortcut to Celadon City between That Awful Arbok! and Wartortle Wars.