Grand Underground Map
The Grand Underground map, plus 34 places you can go inside.
Walkthrough
Grand Underground is stop 25 of 100 in story order, starting from Twinleaf Town.
Grand Underground is an area in Pokémon Brilliant Diamond spanning 35 floors.
The Grand Underground map, plus 34 places you can go inside.
Grand Underground is stop 25 of 100 in story order, starting from Twinleaf Town.