Destroy inflatable llamas at gas stations
To complete this challenge, you will have to destroy three inflatable llamas at service stations. The good news for you is that every gas station offers inflatable llamas, meaning you have a choice.You will indeed be able to go to the gas stations desired, especially in relation to your spawn at the start of the game. Regarding these inflatable llamas, you won't be able to miss them, since they are quite large and move in all directions. If you can't see it, look around, you'll find it eventually. The icing on the cake, some seem to offer several, which will allow you to complete the challenge even faster.
You will find some gas station locations on the map below. You just have to choose the ones you like the most.
Once you complete this challenge, you will walk away with 20 XP.