Diglett's Tunnel (Japanese: ディグダトンネル Digda Tunnel) is a location on Akala Island in Alola, connecting to Heahea City in the north and Route 9 in the south.
An isolated area of Konikoni City can be accessed from Diglett's Tunnel using Machamp Shove.
Sometimes, after a Diglett from a dirt cloud is defeated or caught, it will drop an item.
A Nihilego can appear here or at Wela Volcano Park during the first Ultra Beast mission, initiated by speaking to Looker on Route 8 after becoming Champion. It has an aura that gives it +2 Special Defense stages.
Hau will join the player in a Multi Battle against a pair of Team Skull Grunts.
If the player chose Rowlet:
If the player chose Litten:
If the player chose Popplio: