To unlock the Finders Keepers trophy in Far Cry New Dawn, you will need to complete three Treasure Hunt missions. You can find all of the Treasure Hunt locations once you gain access to free roam, and will be rewarded with crafting materials and perk points for completing them.
There are 10 Treasure Hunt missions in total in Far Cry New Dawn:
- For Whom The Bear Tolls
- Going Haywire
- High Art
- Riddle Me Fish
- Rescuers Go Under
- Light Em Up
- Go With The Flow
- Burning Souls
- The Best Laid Plans
- Target Practice
You can find a video guide below which shows all of the locations and info on how to complete them (credit to xTGE on YouTube for the video):