Where to find the collection and the boxes?
To find the collection and destroy the boxes, you will have to take the direction of the southeast of the island, between Retail Row and Catty Corner. It is a fairly small open-air "building", but very easily repairable.When you are there, in addition to the harvestable equipment, you will find caissons. It is these metal structures, which have transparent glass walls. You will have to destroy three of them using your collection tool to complete the challenge and walk away with 25 XP. A single blow is normally enough to break the wall and progress through the challenge.
The location of the collection is shown on the map above. To find out what a box for more details, you can refer to the picture below.