GRAILTRAIL: Quest for the Holy Grail (Self-Guided Adventure Walk)
Overview
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.
- Mobile data charges for using the Telegram Messenger app on your phone.
Meeting Location
Paternoster Square
London EC4M, UK
Detailed check-in instructions, including the exact address, are provided with your booking confirmation.
This activity ends back at the meeting point.
What To Expect
Important: You cannot access your gamecode via the City Boat Tours ‘ticket’ link. It will be manually generated and sent to you by message after booking.
No time slot is required — play any day, any time during daylight hours. All you need is a smartphone with the Telegram Messenger app.
This self-guided walking trail is a symbolic quest through London’s forgotten sacred geography. Inspired by medieval legends, Templar secrets, and half-buried histories, it follows the Grail’s journey from Glastonbury to its current location — through alleyways, chapels, relics and invisible lines.
Along the way, you’ll uncover connections between early Christianity, Celtic saints, Knights Templar and mysterious alignments. The clues are visual and embedded in the world around you — patterns, names, symbols, and the spaces between them.
The trail is 5km, step-free and ends in Covent Garden.
The story is fiction. The places are real. There’s no need to believe. All you have to do is notice what’s staring you in the face.
Fully playable in 11 languages (English, French, German, Italian, Spanish, Portuguese, Russian, Japanese, Chinese, Korean, Arabic) — no guide required.
Additional Info
- Confirmation is instant and will be received at time of booking
- Wheelchair accessible
- Transportation options are wheelchair accessible
- All areas and surfaces are wheelchair accessible
- Service animals allowed
- Public transportation options are available nearby
- Travelers should have at least a moderate level of physical fitness
- Infants and small children can ride in a pram or stroller
Frequently Asked Questions
(6)Q: What is the cancellation policy for the GRAILTRAIL: Quest for the Holy Grail (Self-Guided Adventure Walk)?
Cancellation Policy
Still have questions?
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Activity code: C-458875P4
Reviews
Average 5.00 out of 5 stars based on 4 traveler reviews collected by City Boat Tours and partner sites such as Cool Destinations and TripAdvisor
Additional Info
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Frequently Asked Questions (6)
The answers provided below were previously given in response to questions from City Boat Tours customers.
Filter by:
- For a full refund, you must cancel at least 24 hours before the tour start time.
- If you cancel less than 24 hours before the tour start time, the amount you paid will not be refunded.
- Any changes made less than 24 hours before the tour start time will not be accepted.
- Cut-off times are based on the tour local time (BST).
- A unique combination of history, mystery and adventure.
- Mobile data charges for using the Telegram Messenger app on your phone.
There is no minimum age for this tour, so bring your wee one along for an adventure..
Apr 2025If a date or time is not listed on the calendar, it’s sold out or unavailable for another reason. Support cannot assist further if a date or time is not on the calendar.
If you find a date and time that works for you, book it NOW because things always sell out at this time of year.
Apr 2025Accessibility information for the GRAILTRAIL: Quest for the Holy Grail (Self-Guided Adventure Walk) is as follows:
- Wheelchair accessible
- Transportation options are wheelchair accessible
- All areas and surfaces are wheelchair accessible
- Service animals allowed
- Public transportation options are available nearby
- Travelers should have at least a moderate level of physical fitness
Detailed check-in instructions – including meeting point address, Google map, and parking information – for GRAILTRAIL: Quest for the Holy Grail (Self-Guided Adventure Walk) will be included in your confirmation email from City Boat Tours. Please be sure to double and triple check your email address is correct at checkout so this important email makes its way to you!
Mar 2024What's Included
- A unique combination of history, mystery and adventure.
- Mobile data charges for using the Telegram Messenger app on your phone.
Additional Info
- Confirmation is instant and will be received at time of booking
- Wheelchair accessible
- Transportation options are wheelchair accessible
- All areas and surfaces are wheelchair accessible
- Service animals allowed
- Public transportation options are available nearby
- Travelers should have at least a moderate level of physical fitness
- Infants and small children can ride in a pram or stroller
