Cairn: How to Use Fireworks
Fireworks in the game Cairn are a collectible item tied to a specific achievement, not survival or progression. You can only launch them at certain rest spots, and carrying them to the summit does nothing. If you try to fire them anywhere else, nothing will happen.
Where To Find Fireworks In Cairn
Fireworks are found along the Kami Cable Car route, hidden slightly off the main path. You will reach an area with a broken Climb bot, then take the left path following the red rail. From there, move toward the cave tucked below a sheltered rock section.
Inside the cave, hug the wall and move carefully along the edge. Follow the sound of music deeper inside. Near a boombox on the ground, you will find the fireworks.
How To Use Fireworks
You cannot launch fireworks freely. They only work at specific rest locations.
To use fireworks, sit at a short break station marked by a cairn with a red flag. Once seated, the game will give you the option to light the fireworks. Selecting it launches them automatically.
When Fireworks Can Be Launched
Fireworks only work while resting at a valid short break station. They cannot be launched at the summit or during normal climbing. Carrying them higher does not unlock anything extra.
Achievement Related To Fireworks
Launching the fireworks correctly unlocks the Light Up The Sky trophy. You only need to do this once. After that, the fireworks have no further use.
Common Mistakes With Fireworks
Many players assume the fireworks are meant to be used at the peak. That does not work and never triggers the achievement. Others hold onto them too long, wasting inventory space.
Final Blurb
Fireworks in Cairn are a small side activity tied to one achievement. Find them near the Kami Cable Car cave, then launch them at a short break station with a red flag. Do not carry them to the summit expecting a reward, the game will politely ignore that effort.
FAQ
Can you launch fireworks at the summit
No, fireworks only work at short break stations.
Do fireworks help with climbing or survival
No, they are purely cosmetic and achievement related.
Where do you activate fireworks
At a cairn marked with a red flag while resting.
Is there a reason to keep fireworks after using them
No, once the achievement is unlocked they serve no purpose.
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