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How to Open the Cluster Coast Hidden Vault in Fortnite Chapter 7 Season 3

⚡ Quick Facts
  • Game: Fortnite Battle Royale
  • Developer: Epic Games
  • Release Date: 2017-09-26
  • Platforms: PC, PlayStation 5, PlayStation 4, Xbox One, Xbox Series S/X, Nintendo Switch, iOS, Android

Unlocking the Cluster Coast hidden vault in Fortnite Chapter 7 Season 3 requires players to locate a specific item known as the Duck Key. This Battle Royale challenge is situated at the southernmost point of interest on the island, where Epic Games has hidden a secret chamber behind a puzzle involving a rubber duck.

If you are looking to secure the high-tier loot inside this vault, follow these steps to complete the process efficiently:

  1. Travel to the Cluster Coast POI located at the southern tip of the map.
  2. Search for the glasses-wearing rubber duck in one of four potential spawn locations: the golden fountain, the mansion's left-room swimming pool, the mansion's aquarium, or the outdoor pool.
  3. Interact with the rubber duck to collect the Duck Key.
  4. Enter the building directly opposite the mansion.
  5. Place the Duck Key into the glass display case found inside this building to unlock the vault door.

Cluster Coast Hidden Vault Location in Fortnite Chapter 7 Season 3

The Cluster Coast point of interest serves as the primary setting for this Fortnite Chapter 7 Season 3 secret. To find the vault, players must navigate to the southern edge of the island. The structure housing the vault is positioned directly opposite the main mansion at this location.

Upon entering the correct building, you will find a vault door located on your left side. However, attempting to interact with the door immediately will yield no results, as it remains locked until the specific key is retrieved. As part of our coverage here at In Game News, we have verified that this door is the primary objective for players seeking the specialized rewards hidden within this area.

For more updates on map secrets, you can view our Fortnite coverage for additional tactical insights.

How to Find the Duck Key

The key to the vault is a unique item modeled after a rubber duck wearing glasses. This item does not have a single static spawn point; instead, it rotates between four distinct locations within the Cluster Coast area. Players should check these areas systematically to reduce time spent searching:

  • The Golden Fountain: Located in the front courtyard of the mansion.
  • Mansion Left Room Pool: Check the interior swimming pool area.
  • The Aquarium: Located inside the mansion premises.
  • Outdoor Pool: Check the perimeter of the mansion for the exterior swimming area.

Once you spot the rubber duck, approach it and interact with the prompt to secure the Duck Key in your inventory. Having this key is mandatory to trigger the mechanism that opens the vault door.

Solving the Cluster Coast Vault Puzzle

After acquiring the Duck Key, return to the building opposite the mansion. Inside, you will find a glass case situated in the main room. This case acts as the terminal for the vault's locking mechanism. By placing the Duck Key into the glass case, you initiate a sequence that automatically unlocks the vault door located opposite the pool area.

The process is straightforward once the key is in your possession, but players should remain vigilant, as this area is a common hot spot for other competitors. Ensure your loadout is prepared for potential skirmishes before entering the vault, as other players may be attempting to solve the same puzzle simultaneously.

If you are interested in broader game mechanics or other hidden secrets, check out our guides for more information on surviving the current season.

Frequently Asked Questions

How do you solve the Cluster Coast vault puzzle in Fortnite?
To solve the puzzle, you must locate the glasses-wearing rubber duck, collect the Duck Key, and place it inside the glass case located in the building opposite the mansion.

Where is the Cluster Coast secret vault in Fortnite 2026?
The secret vault is located in the building directly opposite the mansion at the Cluster Coast point of interest on the southern edge of the island.

What are the rewards for opening the Cluster Coast vault in Fortnite?
Opening the vault grants players access to high-tier loot and specialized gear contained within the secret chamber.

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By Senior Writer, In Game News
✓ Verified Analysis
Published: Jun 8, 2026  |  Platform: PC Gaming  |  Status: Guide
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