This page offers a guide on how to dig for treasure in the Underground in Pokémon: Brilliant Diamond & Shining Pearl (BDSP).
Digging for Treasure¶
Before you can start digging, you’ll actually need access to the Grand Underground, which requires the Explorer’s Kit.
(1 of 2) When you use the Explorer Kit, a hole will appear underneath you.
When you use the Explorer Kit, a hole will appear underneath you. (left), You’ll then fall down into the corresponding section of the Grand Underground. (right)
You can get the Explorer Kit from Eterna City, via the house to the right of the Pokémon Center. The Explorer Kit will be stored in the Key Items section of your bag. Using the kit, you can instantly travel to the Grand Underground from almost anywhere.
The location where you use the kit will determine where you begin in the Grand Underground. However, the reverse is not true; using the Explorer Kit again will always return you to your original location, no matter where in the Grand Underground you are.
Now that you can access the Grand Underground, you’ll spot small orange sparkles on the mini map that represent an area that you can dig for treasure!
When you choose to dig at a wall, a puzzle screen will appear, and it’ll tell you how many treasures are available to uncover in this section of the wall. You’ll need to use the Sledgehammer and the Pickax to break away pieces of the wall to reveal the hidden treasures. However, there’s a limit to how many times you can dig, before the wall collapses and you’re forced to leave.
- The Sledgehammer clears away a wider area of rocks, but will cause the wall to collapse more.
- Meanwhile, the Pickax works on a smaller area, but will cause less damage to the wall.
(1 of 2) Use the Dowsing Machine app to reveal the walls you can dig.
Use the Dowsing Machine app to reveal the walls you can dig. (left), Diamond and Pearl fans may recognize this screen! (right)
It’s a good idea to start with the Sledgehammer, then swap over to the Pickax to focus on a specific area. You can swap tools by pressing the R button or tapping the touch screen.
To obtain a treasure, you must fully uncover it–in other words, it’s completely visible, with no rocks obscuring it. Once you’ve recovered all the treasure or the wall reaches its limit, you’ll receive all the treasure you recovered.
What Can you Dig Up in the Grand Underground?¶
Within the walls, you’ll find a few different kinds of treasures.
| Treasure Type | Description |
|---|---|
| Spheres | these are the main currency in the Grand Underground and can be used to trade various items with Sphere Traders. Head over to our guide on all the available spheres. |
| Statues | they can be placed in your Secret Base and will increase the encounter rate of that Pokémon’s type. Head over to our guide on all the available statues. |
| Evolution Stones | These stones trigger the evolution of certain Pokémon. |
| Shards | You can collect 10 shards of the same color and then trade them for a weather effect TM at the Shard Collector’s house in the south side of Route 212. |
| Battle Items | Battle Items offer various in-battle effects. |
| Pokémon Fossils | Fossils can be used to revive Pokémon at the museum in Oreburgh City. Head over to our guide on all the available fossils and their corresponding Pokémon. |
| Rare Bone | Rare bones aren’t turned into any fossils, but they do count towards your Fossil count! |
| Heart Scales | The Heart Scale can be traded to the Move Reminder found in Pastoria City to remember previously forgotten Pokémon moves. They can also be held by  Luvdisc. |
| Star Scales | Valuable and rare item. |
There’s lots of treasures to find!
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