Big Walk Yellow Tower Guide: 5 Puzzles & Tunnel Key
Complete the five Yellow Tower puzzles, place their rewards, cut the yellow key and unlock Big Walk’s tunnel network without missing a station.
Quick answer
Solve five eligible puzzles around the Yellow Tower and place one reward in each slot at the top. Take the blank yellow key through all five marked key cutters, then carry the finished key southeast to the Big Tunnel entrance. If the tunnel stays locked, check the tower slots and every cutter before repeating a puzzle.
- Tower requirement
- 5 puzzle rewards
- Key cutters
- 5
- Unlocks
- Big Tunnel network
- Route direction
- Tunnel is southeast
Find the Yellow Tower north of the chairlift
The Yellow Tower sits in the island’s northern interior, roughly around the 3310, 1560 coordinate area in community walkthroughs. Its jagged yellow structure is easier to identify from high ground than from the forest below.
The tunnel lock it eventually opens is separate from the tower, southeast around the 3500, 1620 area. Finish and shape the key before walking there.
Collect five rewards from the surrounding puzzle cluster
The tower accepts five eligible red rewards. Community routes group an aerial chair symbol delivery, a blue concert-stage button puzzle, the coloured pegs board, a microphone challenge and a sound booth around this objective.
Reward objects are interchangeable for progression, so the tower slots are the reliable count. If your world size changes the exact jobs inside a challenge, keep the objective—release and deliver five rewards—rather than copying a role count from another group.
- Aerial chair symbol delivery — east of the tower area.
- Blue concert-stage buttons — close to the eastern approach.
- Coloured pegs board — south of the tower.
- Microphone and sound-booth challenges — north of the tower.
- Carry every released reward to the five slots at the top.
Run the blank yellow key through all five cutters
Filling the tower releases a blank key. Follow the marked cutter route and insert it at every station until all five sections have been shaped. A visible change after one cutter does not mean the key is finished.
Use one player as the key carrier and have the group call each completed cutter. This prevents the most common failure: reaching the tunnel with a partly shaped key and not knowing which station was missed.
Use the finished key at the Big Tunnel entrance
Carry the finished key southeast and insert it at the large tunnel entrance. Entering the opened route establishes a permanent shortcut for the host save and connects distant parts of the island.
The tunnel also contains branches and music landmarks used by later guides. Treat opening it as the end of the Yellow Tower route, not as proof that every nearby side puzzle is complete.
Frequently asked
How many rewards does the Big Walk Yellow Tower need?
Five. Place one eligible puzzle reward in each slot at the tower.
What does the Yellow Tower unlock?
It releases the key used to open the Big Tunnel network, creating a permanent island shortcut for that host save.
Why does my yellow key not open the tunnel?
The blank key must pass through all five marked cutters. Retrace the cutter route; solving more puzzles will not complete a partly shaped key.
Sources and verification
Official pages are the primary reference. Player reports are labelled as community samples and never presented as official facts.