Where is the underground?

[Zallarion]

I want to catch a spiritomb.. so could someone please tell me where the underground is, and give me suggestions? i got a map allready..:-D

[Jeff]

You need the explorer kit, if you don't have it you can get it from the Underground Man, he's in the house next to the pokemon center in Eterna. Once you have that, use it anywhere and you'll be in the underground.

[Zallarion]

Damn it.. i wish i knew...-_-'

[Poryhedron]

Wish you knew what? Jeff told you how to access the Underground.

[Zallarion]

*i wish i knew earlyer..:D