It's a missable trophy.
This is part of the main quest "Dead's Man Party"
There are ten activities to do but you need to be wary of these four:
- Gwent match with the halflings
- Fishboot game
- Retrieving the fireswallower
- Pig Herding game
because they make time skip forward by two hours every time one is completed. So you need to complete the six optional activities before completing the last of the four mandatory activities.
All tne activities are showed up your map so you cannot miss them.