Sandcastles in the Sand is a quest available in Goatenburg of Goat Simulator 3.
Your objective is to build your own sandcastle using the bucket.
Here’s a guide on Sandcastles in the Sand in Goat Simulator 3.
The event location is shown in the map below.
Build a new and better sand sculpture
When you reach the event location you have to headbutt the existing sand sculpture.
You’ll then see plenty of pink buckets. You just need one.
Grab the pink bucket and look for existing sandcastles. With the bucket in your mouth, go against those castles to grab them.
Then, bring back the filled bucket.
Go to the designated spot with the filled bucket and it’ll automatically be emptied with a new sand sculpture design.
Do the same for all five sandcastles. There are four sandcastles on the left of the designated area, and one sandcastle at the far right.
Once you’re done, the quest is complete and you’ll unlock a new area.
Enter the newly built sandcastle and you’ll be in a small area of DE_DUST2 which is a Counter Strike reference.
To win this event, you have to defeat all of the sand people. There are maybe around 10 of them.
Completing this event will give you a King of Sand headpiece.
Goat Simulator 3: The Lost Tapes Quest Guide