Frontier Caverns is a location in Dragon's Dogma.
"The Goblin-dug tunnels that are entered from the Northwest corner of The Shadow Fort."
- A large gate leading to the Proving Grounds is locked until you complete Put the Eye Out, a Notice Board Quest.
- Operate the large iron gate opposite the entrance gate of the Proving Grounds, during the Notice Board Quest - Put the Eye Out .
- Alternatively, it is possible to get 2 stars of Pawn Travel Knowledge after engaging the Goblins in the first chamber. If that happens, then operating the iron gate will not grant any stars.