London Holy Grail Adventure Quest Experience

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

Meeting Point

Paternoster Square

Paternoster Square, London EC4M, UK

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.

What's included:

• A unique combination of history, mystery and adventure.

Not included:

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

What to expect:

Paternoster Square

Important: You cannot access your gamecode via the Tripadvisor ‘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.