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LOCKEDFinish the Yellow source requirement.CheckMap

Big Walk Tunnels Guide

Unlock the tunnel network through the Yellow route, find its entrances and get Big Tunnel.

  • 🔑 Yellow route destination
  • 🕳 Underground network
  • ↕ 4 colored access points
  • 🏆 Big Tunnel achievement

Check My Tunnel AccessShow Tunnels on Map

Tunnel Access Status

  • Yellow Key released
  • Key cutters
  • Finished key placed
  • Tunnel network open

NEXT

Finish the Yellow source requirement.

Your tunnel state is saved on this device and shared with the Yellow route and 100% tracker.

Tunnel Access Status

These four checks name the one thing still standing between you and the tunnel network.

  • Has the Yellow Key been released?Not yet

  • Have all five Yellow cutters been completed?0 / 5

Tap the placed key or the open network once you have done it. Progress is saved on this device and shared with the rest of the site.

NEXT

Finish the Yellow source requirement.

The Yellow Key has not been released yet. Tunnel access belongs to the Yellow route, so the source has to hand the key over first.

Your next action

Release the Yellow Key.

Yellow Area GuideBig Key Guide

Why Are the Tunnels Still Closed?

Work down this list. Each row is one Yellow-route state, not a generic “finish earlier transport first” step.

  • Yellow source incomplete

    Your next action

    The Yellow Key has not been released from its source.

    Finish the Yellow source requirement.

  • A Yellow cutter is still missing

    Your next action

    The released key has not passed every cutter yet.

    Go to the first incomplete Yellow cutter.

  • The Yellow Key is still unfinished

    Your next action

    Five cutters are required before the key is in its finished state.

    Complete the remaining Yellow cutters.

  • The finished key has not been placed

    Your next action

    All five cutters are done, but the finished key has not reached the tunnel destination.

    Take the finished Yellow Key to the tunnel destination.

  • Key placed, gates still closed

    Your next action

    The Yellow route is finished, so this is not a route problem any more.

    Check the four colored access gates in game and use the one that opens.

How to Unlock the Tunnels

The unlock is the Yellow Big Key route, end to end. In order:

  1. 1

    Release the Yellow Key.

  2. 2

    Complete all five cutters.

    Yellow Cutter 1Yellow Cutter 2Yellow Cutter 3Yellow Cutter 4Yellow Cutter 5

  3. 3

    Take the finished key to the tunnel destination.

  4. 4

    Open the tunnel network.

Releasing the Yellow Key is only the beginning. Nearby Yellow puzzles are not a substitute for the five cutters or the destination.

Check My Tunnel AccessYellow Area Guide

Where Are the Tunnel Entrances?

The Yellow route has the activation destination, but once the network opens there are several colored access points around the island.

  • Yellow unlock point

    The finished Yellow Key goes to this one destination. Opening it is not the same thing as the underground network it switches on.

  • Colored access points

    Four verified gates — red, green, blue and yellow. Once the network is open, the same gate works as an entrance or an exit.

Show All Tunnel Access Points

Tunnel Network

One transport system with four colored access gates. Where each gate leads underground is not published as a route order.

Where Does Each Tunnel Go?

Pick a gate to see what is verified for it. The color of a tunnel does not prove which area it leads to, so no destination is guessed from the color alone.

Tunnel Network

This is a schematic of the four verified gates, not a map of the underground geometry. No unverified corridors are drawn.

Colored tunnel gate

Вход в красный туннель

Status

Locked

Map position

Marked on the world map

Underground route

Not published yet.

Show on World Map

Show All Access Points

How to Use the Tunnels

  1. 1Unlock the Yellow route.
  2. 2Enter an opened tunnel entrance.
  3. 3Follow the in-game route and signage through the network.
  4. 4Exit through an available access point.

Community guides recommend using a flashlight because the tunnels are dark. Treat that as a tip rather than a requirement.

What Do the Tunnels Do?

They give your group an underground route between several parts of the island.

The tunnels are a transport system of their own, not a faster version of the Train or the Chairlift, and not a late-game gate unless a later dependency is verified.

Tunnels, Train and Chairlift

Each transport is opened by its own Big Key route. The full comparison lives on the Transport hub.

Big Tunnel Achievement

Opening the tunnel network is not the achievement. Once the network is open, actually enter one of its tunnel entrances.

🏆 Requirement

Войдите в большой туннель.

Standing at the mouth of the tunnel is not entering it. The full trigger, the entrances that count and the fixes live on the achievement page.

Full Big Tunnel Achievement GuideShow Big Tunnel Location

Big Tunnel or Train Tunnel?

  • Big Tunnel

    The underground network the Yellow route opens. Walking into it is what fires the medal.

  • Railway tunnel

    Part of the Train route. Riding the Train through it is a different system and does not fire Big Tunnel.

Open the Train Guide

Secrets Inside the Tunnels

Shiny Makeover Room

The makeover room with the metallic finishes sits inside the tunnel network. The full route, the paint choices and the achievement checks belong to the Big Makeover guide.

Get Shiny Guide

What Should I Do After Unlocking Tunnels?

Yellow being complete does not pick the next route for you. Use your current progress to see which unfinished route actually matters.

What Should I Do Next?Unfinished Red, Green or Blue, the Black Tower, or later progression only appear when that dependency is true for you.

Tunnel FAQ

Как открыть туннели?

Пройдите жёлтый маршрут Big Key: освободите ключ, пропустите его через все пять резаков, затем установите готовый ключ в пункте назначения туннеля.

Нужно ли сначала пройти Поезд?

Не стоит считать, что существует жёсткая последовательность Поезд → подъёмник → туннели. Сеть туннелей относится к жёлтому маршруту.

Я прошёл Жёлтую башню. Почему туннели всё ещё закрыты?

Освобождение жёлтого ключа — лишь начало. Пройдите все пять резаков и установите готовый ключ в пункте назначения туннеля. Руководство по Жёлтой зоне

Сколько входов в туннели?

Проверены четыре цветных входа: красный, зелёный, синий и жёлтый. Каждый работает и как вход, и как выход. Подробности о точках доступа

Куда ведут красный, зелёный, синий и жёлтый туннели?

Пункт назначения показывается только там, где он проверен. Цвет ворот не считается доказательством того, куда они ведут. Подробности о точках доступа

Как получить «Большой туннель»?

Войдите в открытый большой туннель. Официальное условие простое: войти в большой туннель. Большой туннель

Открывается ли «Большой туннель» автоматически при открытии туннелей?

Нет. Открытие сети не является условием — нужно пройти внутрь большого туннеля. Стоять у входа не считается. Раздел «Большой туннель»

Это то же самое, что туннели Поезда?

Нет. Железнодорожные туннели относятся к маршруту Поезда. «Большой туннель» — это подземная сеть, которую открывает жёлтый маршрут. Руководство по поезду

Находится ли блестящая комната преображения в туннелях?

Комната преображения находится внутри сети туннелей, но её маршрут, выбор красок и проверки достижения описаны в руководстве по «Большое преображение». Гид по Big Makeover

Нужны ли туннели для финала?

Транспортную сеть и прогресс к финалу следует считать отдельными системами, пока не подтверждена конкретная зависимость на поздних этапах. Что делать дальше?

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