GRAILTRAIL: Quest for the Holy Grail (Self-Guided Adventure Walk)

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Free cancellation available
Up to 24 hours before the start time
Duration: 2 hours
Service animals welcome

Join our quest for the Holy Grail and follow a trail of mystic symbols, cryptic sites, and secret signs buried in the heart of London. This trail is built on historical fact — if it’s not true it should be! The story it tells takes you way past the point of mere coincidence. What you discover will astonish you.

Bring your scepticism to Paternoster Square. By the time you reach Covent Garden, it may have evaporated.

This epic quest is designed to be savoured, not raced. You can take breaks, explore nearby landmarks or simply let the story unfold at your pace. The directions are easy to follow. The clues are visual and rooted in the cityscape. All you need is your phone — and a bit of faith.

Fully playable in 11 languages (English, French, German, Italian, Spanish, Portuguese, Russian, Japanese, Chinese, Korean, Arabic) — no guide required.

Starts: Paternoster Square

Ends: Covent Garden

Distance: 5 km

For adults & teens with an interest in history, symbols and storytelling

What's included

  • A unique combination of history, mystery and adventure.

What's Not Included

    What's not included
    • Mobile data charges for using the Telegram Messenger app on your phone.

    Additional information

    Wheelchair accessible

    Infants and small children can ride in a pram or stroller

    Service animals allowed

    Public transportation options are available nearby

    Transportation options are wheelchair accessible

    Location

    Departure point

    Paternoster Square, London
    There is no guide to meet you — your guide is your phone and the Telegram Messenger app. After booking, you’ll receive a message with your gamecode. When your team is ready in Paternoster Square, open Telegram, search for SideWalkerBot, and send the message /start to begin.

    End point

    Paternoster Square, London

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