In week 4 of Season 7 in Fortnite: Battle Royale you need to launch fireworks three times. Where you set off the fireworks, you can find out here. A map shows the locations.
Update July 4: For the “14 Days of Summer” challenge, you also need to launch fireworks in Fortnite. In this post, we show you the locations:
Launch fireworks along the riverbank – Locations
This is the fireworks challenge from week 4: In week 4 of Season 7 in Fortnite, you need to launch fireworks three times. You can find them at various locations such as The Block, east of Wailing Woods, and south of Paradise Palms. You can recognize the fireworks by a rocket sticking out of the ground.
The locations of the fireworks
After the challenge started, the Fortnite community diligently gathered many different locations where you can launch the rockets. Fortnite celebrity Squatingdog has created a clear map showing you all the locations of the fireworks in Fortnite. We embed the map here for you.

How do I launch the fireworks? To complete the task, you only need to walk up to the rocket and activate it. It will start, and you have partially completed the task.
Warning, danger lurks here: When you launch the fireworks, everyone knows you are there and can attack you. Also, especially in the first hours of the challenge, there will be many people around the fireworks, and it should get quite chaotic.
So be careful and consider landing a bit later at the spot. Then the task should still be solvable, and you can have some peace. Alternatively, you can do the challenge if you have respawns, then it doesn’t matter if you get shot.
The fireworks in the video: If you prefer to see the fireworks in moving images, we have embedded a video for you here. It shows some of the rockets. Have fun!
You can find all the other tasks for week 4 of Season 7 in our comprehensive article about the challenges:

