The Quack Quest in Build A Boat for Treasure appears to be found through the quest/map menu, where you select the cloud-related quest and start it from there. One recent guide snippet says to open the menu, go to the quest or map icon, click the cloud, and press start, with your blocks cleared first.

What to try

  • Open the in-game menu.
  • Go to the quest or map icon.
  • Select the cloud quest.
  • Start it with no blocks placed.

Extra context

A broader quest guide for the game confirms that quests are a standard feature in Build A Boat for Treasure and can reward blocks or Gold. If you were actually asking about a different Roblox game called “Quack Quest” or a specific quest location inside Build A Boat, the exact spot may differ, but the cloud quest method is the most direct match from the available information.

Useful note

If the quest does not appear, it may depend on your game progress or whether the quest is currently active in your version of the game.