Location of the Coral Kingdom Border Monuments
The events will, once again, take place in the northwest of the island. You will have to go to three very specific places (which are indicated on our map above) in order to find blocks of stone which you will simply have to cut using your collecting tool. You only need to hit the stone once for the action to count. Once the three stones have been cut, you will have passed the challenge.
The validation of this challenge will allow you to leave with 25 XP, which is not negligible in order to recover all the elements of the Battle Pass. You can also find all the secret challenges, but also the normal challenges, in this dedicated guide.