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★ Mario & Luigi: Brothership out now!
★ How to Unlock and Complete Every Challenge!
★ Pull off strong Bros. Attacks for maximum damage!
★ Best Gear | Best Battle Plugs | Rank-Up Bonuses
★ Power up with Best Battle Plug Combos.
★ Share your Hammer Rally high scores!
There are 20 Reefs in Mario & Luigi: Brothership for you to discover. See all the Reefs' locations on our map and get rewards from Issa Rock for discovering them.
| Icon | How to Use |
|---|---|
 | Show Names This button reveals the Name of every icon currently shown. |
 | Show Pins This button will toggle between showing and hiding all the pins that you have already marked as acquired. |
 | Fullscreen This button will change the map display to fill the screen. |
 | Search Mode Toggle This button will display a search bar which you can use to search for an individual pin by its name. |
 | Icon Mode Toggle In Search Mode, this button will toggle you back to Icon Mode, removing the search bar and displaying the icons again. |
 | All Pins This button is shown along with the Icons on the right when there are over 6 types of pins. Click it for a full selection of all available pin types. |
 | Counter Tracks the number of pins you have of a certain type. The pin type shown is set to the page and currently cannot be changed; however, all pin type counters can be viewed by clicking the checklist icon on the right side. |
 | View All Counters This icon is found on the right side of the Counter. When a map has more than one pin type, click this icon to see Counters for all pin types. |
So far, we’ve discovered all 20 reefs in the game. Here’s how they’re distributed:
On Shipshape Island, you can speak to Issa Rock, who has a fascination with reefs. She’ll ask for your help in spotting them and will request that you report back to her after every few reefs you discover.
| No. of Reefs Discovered | Reward | Gear Description |
|---|---|---|
| 3 | First Contact Gloves | Boosts POW and DEF by 15% at the start of the battle. |
| 7 | Ready-Already Gloves | Boosts STACHE by 50% while no other wear is equipped. |
| 11 | Stash Speed Gloves | Boosts SPEED in proportion to the number of Battle Plugs you have. |
| 15 | Nimble Crown DX | +3 Def; Has a chance to give you the first turn in a given combat. |
| 20 | HP+BP Bangle | Restores HP and BP at end of turn by 3% of their max values. |
At certain milestones, Issa Rock will reward you with new gear, so be sure to check in regularly!
You can find undiscovered reefs on the ocean map. These are shown with a blue silhouette and are found near currents.
To reach near the location of the reef, make sure to travel along the current that passes by it.
Once you are near the location of the reef, use the telescope and find reef based on its silhouette on the ocean map.
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The last reef is in the northernmost current of Stormstar Sea, but you need the ability to travel long distances in an instant. The final reward is the HP+BP Bangle (Recover 3% of the max HP and BP every turn)