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London Spytrail Mole Hunt Self-Guided Walk 2 hr

TourTruth score 6.9 out of 10

Average

5 reviews · Rated on 1 provider · How we score

  • London, United Kingdom
  • 2 hrs
  • Updated November 2, 2026

Follow phone-based clues on a self-guided London spy mission, searching for a mole along a 5 km trail from Trafalgar Square.

About this tour

Take on a clandestine mission in London: follow a trail of mysterious instructions and uncover a mole hiding within the intelligence services. This self-guided London Spytrail Mole Hunt begins and ends at Trafalgar Square, leading you along a 5 km route through the city’s secret intelligence landscape.

Use your phone to follow map-based directions, inspect visual clues, check dead drops, and search for signals. The game takes around two hours and is designed as a journey, not a race, so you can pause for breaks, take detours, or stop to explore along the way. No live guide is needed; enter your booking reference on the game website to get started. The experience is available in 11 languages, and the English version includes audio narration. It is designed for adults and teens interested in stories, walking, and observation. Wheelchair accessibility is noted for the route.

Bring a smartphone and data connection, then see if you can identify the mole before the trail ends. Book your London Spytrail Mole Hunt and put your powers of observation to work.

Highlights

  • Follow a clandestine trail through London’s secret intelligence history
  • Search for dead drops, signals, and visual clues
  • Unmask a mole using instructions delivered to your phone
  • Explore at your own pace, with time for breaks and detours
  • Start and finish at Trafalgar Square

What's included

Included

  • Step-by-step interactive instructions
  • Game access through your phone’s web browser
  • Unique game code sent after booking
  • Visual clues and map-based navigation
  • Self-paced private experience without a guide

Not included

  • Smartphone and data connection
  • Food, drinks, or transport
  • Entry to attractions, which is not required
  • Live guide or tour escort, which is not required

Ratings on each provider

The ratings and review counts each booking site shows for this tour.

Important information

  • Go to the trail start at Trafalgar Square; there is no guide to meet
  • Use your Viator booking reference to access the game at play.sidewalks.co.uk
  • Each group member should enter the booking reference
  • A moderate level of physical fitness is recommended
  • Wheelchair accessible; nearby public transportation is available
  • Infants and small children can ride in a stroller; service animals are allowed

Frequently asked questions

Where does the walk start and end?

The trail starts and ends at Trafalgar Square.

How do I start the game?

At the start point, open play.sidewalks.co.uk, tap “Booked on Viator?” and enter your Viator booking reference. Each group member should do this.

Is there a guide?

No. The experience is self-guided, with instructions and clues delivered through your phone.

How long is the experience?

The adventure takes about 120 minutes and covers approximately 5 km.

What should I bring?

Bring a smartphone with a data connection. Food, drinks, and transport are not included.

How this score is calculated

This score is based on one provider. Viator rates it 4.60 from 5 reviews. We place that rating among all Viator ratings and weight it by its review count. If the tour is found on another provider later, both ratings are combined.

How the score works and rating distribution in London
  • Each provider rating is turned into a percentile: the share of that provider's ratings it beats, weighted by review counts.
  • Listings on different providers are combined in proportion to their review counts.
  • Tours with few reviews are pulled toward the average until more reviews come in, so a handful of perfect reviews can't top the list.
  • The result is shown from 0 to 10: this tour scores 6.9.

Provider rating distribution in London

How many tours in London have a provider rating at or below each value. The dashed line is this tour.

  • Viator

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