This achievement can be found at the start of Chapter 8: A Sea of Promises in La Cuna. When you arrived make your way through the first marketplace and cut through the alley way opposite. Pass through two flowery archways and take your first left down into a courtyard with the fairground game.
Talk to the man behind the stall to start the game. Now you simply need to pick up four pots and throw them through each wreath without missing or hitting the edges.
to aim and press
to throw. When aiming use the direction of travel indicator to ensure it passes through the hole, hitting the banners behind.
This activity also earns you the "Flower Crown" souvenir needed for the Immortal Memories achievement.