Pokémon FireRed and LeafGreen/Diglett's Cave

Diglett's cave, dug by s, connects Route 11 and Route 2. There is no way you can get lost here and there aren't any trainers. However, you can catch Diglett and. When battling these two, Water, Grass and Ice Pokémon are great choices, but only Flying Pokémon can avoid their deadly Dig attack. So when the Pokémon digs, send out a bird. You will emerge north of Viridian City when you exit the cave.