Pokémon Brilliant Diamond and Shining Pearl are pretty good remakes of the original DS title, but also offer some new content for everything else. This includes the Grand Underground, which replaces the ancient underground and offers new opportunities to catch Pokemon (although they are much more difficult than those on the surface). It is accessible from almost everywhere in Singh and also offers some additional treasures that can be found. Treasures can also be exchanged on hikers, which give them balls in return. Together with the upgrade of your secret base, you can buy with spheres of evolutionary stones and heart shed (which can be exchanged against the motion reminder in Astoria City to help Pokemon when recovering certain movements). But where are these hikers? Just drive northwest of the Battle Zone area Grand Underground or go directly from the entrance to the Twin Leaf Grand Underground to find a Hiker. You will also find them in the different sections of the Grand Under...