Why choose this London tour ?

Join our quest for the Holy Grail, discovering mystic symbols, cryptic sites & secret signs along the way. Follow a trail of clues & directions sent to your mobile phone to discover intriguing truths & forgotten details buried in ancient London landmarks.

Complete your quest by reaching a secret location that hides all the answers in plain sight. And we guarantee: our quest for the grail is built on historical fact, not fiction.

This 2+ hour adventure through time is a journey, not a race. There are endless opportunities to step off the trail for breaks & refreshments or to explore points of interest. The route is chosen for its beauty, relative quiet & historical interest. Our directions are playfully disguised but easy to follow. Our clues are artfully contrived but always staring you in the face.  All you need is your phone & a bit of faith.

* Starts: Paternoster Square
* Ends: Covent Garden
* Distance: 7km
* For adults & teens with an interest in history, puzzles & walking



Make the most of your London adventure

Tour Description & Additional Info:

  • 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
  • All areas and surfaces are wheelchair accessible
  • Travelers should have at least a moderate level of physical fitness


Options To Choose for Your Trip:

  • Holy Grail Trail Game (Self-Guided Adventure)
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Holy Grail Trail Game (Self-Guided Adventure) Inclusions:

Included with Your Ticket

  • A unique combination of history, mystery and adventure.

Not Included

  • Mobile data charges for using the Telegram Messenger app on your phone.

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Special Instructions:

    WHATEVER TRIPADVISOR/VIATOR SUGGESTS, YOU CANNOT ACCESS YOUR GAMECODE BY CLICKING ON A LINK TO ACCESS YOUR TICKET. IT WILL BE GENERATED MANUALLY AND SENT TO YOU BY TEXT (AND EMAIL IF YOU PROVIDE AN EMAIL ADDRESS). BECAUSE THIS IS A MANUAL PROCESS, THERE MAY BE A SHORT DELAY BETWEEN BOOKING AND RECEIPT OF YOUR TEXT. IF YOU BOOK WITH AN OVERSEAS NUMBER, WE WILL SEND YOU A MESSAGE CONTAINING YOUR GAMECODE VIA VIATOR. The games are played with clues and directions sent by SMS/text on UK mobile numbers ONLY. You can buy an e-SIM (from as little as £5) to get a UK mobile number. Visit our website (https://sidewalks.co.uk/how-to-play) for instructions how to play the game.

    Please be advised..

  • This Tour is Provided by SideWalks.
  • Tour Timezone & Starts at Europe/London.
  • Mobile or paper ticket accepted.
  • For a full refund, cancel at least 24 hours before the scheduled departure time.
  • This Tour is Rated 5 Stars based on 3 valid reviews on TRIPADVISOR.
  • Minimum 1 Travelers is required to book.
  • Maximum 5 Travelers is accepted for booking.