Archan Tunnel

Archan Tunnel connects Seros Village and Archan Town.

BF1
All Pokemon are exceedingly low in level (< 5).
 * Drilbur
 * Geodude
 * Zubat
 * Whismur

F1 (HG Branch)
Then there is a "fork in the road". Following this fork leads you through another section of the cave and eventually to a hidden grotto.
 * Scraggy
 * Whismur

F1
Fishing (Good Rod):
 * Roggenrola
 * Whismur
 * Swoobat
 * Zubat
 * Barboach