Big Bluff Cavern

33 Pokémon can be caught at Big Bluff Cavern in Sinnoh.

One of the hideaways found in Sinnoh's Grand Underground, Big Bluff Cavern becomes reachable once the player receives the Explorer Kit from the Underground Man in Eterna City. Wild Pokémon wander openly through the cave rather than hiding in tall grass. The cavern itself is a broad, dry space of sand and stone dotted with old ruins, and some rock formations rise higher than the player, forcing detours.