Platinum Ruin Maniac Tunnel
Year after year, the Ruin Maniac digs this tunnel deeper, chasing a path clear to the Solaceon Ruins. The further it bores, the odder the Pokemon you turn up.
Ruin Maniac Tunnel is in Sinnoh. In the story you arrive from Route 214 to the west and it comes before Valor Lakefront.
RUIN MANIAC TUNNEL MAP
A Ruin Maniac is slowly excavating this tunnel beside Route 214, and when the digging finally finishes it connects through to an upper room of the Solaceon Ruins.
Pokemon Encounters
Geodude packs the walls at 95 percent, leaving Hippopotas as the only reason to dig through, a Ground-type that climbs from a rare 5 percent to a steadier 20 percent the deeper you go.
Geodude
ITEMS
All field items and hidden pickups at Ruin Maniac Tunnel.
TM28 Dig
The user of Dig will burrow its way underground on the first turn, disappearing from view and becoming invulnerable to most attacks.
TM28 Dig
The user of Dig will burrow its way underground on the first turn, disappearing from view and becoming invulnerable to most attacks.

