Play at your pace · usually 83 min 1.6 km Watford App-guided
Play in
English
The experience
About this quest
Step back into 1942 and enter the high-stakes world of WWII espionage! A Nazi spy has infiltrated Cassiobury Park with a decoded telegram that could change the course of history. As an MI6 operative, you must navigate the historic grounds of the Earls of Essex, solve cryptic puzzles at hidden canal locks, and track your target through the ancient Whippendell Woods. Will you stop the assassination before twilight?
Is this for you?
Who it's for
Families with primary-school-age children who love spies and codes get a 1942 MI6 mission through Cassiobury Park, solving easy puzzles at canal locks and in Whippendell Woods over 1.6 km. Local couples and friends who know the park will see it differently too. Pick another day when the river is high, and something else entirely if you want a live guide answering questions.
What makes this quest special
Highlights
Interactive History: Use a "Ghost Mill" viewfinder to see buildings that disappeared 70 years ago.Cinematic Storytelling: Solve a continuous narrative inspired by real WWII defense plans.Elite Puzzles: Experience authentic spy techniques like offset ciphers and logical elimination.Hidden Gems: Discover secret bunkers, WWII tank traps.
From people who played this quest
Good times. In their words.
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1 player ratings
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From your phone to the streets
A walk that turns into an adventure.
1
Open the app. You’re on your way.
Choose your pass, then open your quest in the Questo app. It guides you from the starting point.
2
Get outside. Follow your curiosity.
Discover real places and their stories on foot. Stop for a coffee or a photo, then pick up where you left off.
3
Crack a clue. Share a little victory.
Look around for answers, solve puzzles and enjoy the “we got it!” moments.
This quest features interactive puzzles you’ll solve in the real world.
Difficulty level: Easy 🟢😊
Ensure your phone is fully charged or bring along your trusty power bank
Don't attempt when the river is high
Family friendly
A little clarity before you go
Frequently asked questions
Where does the Cassiobury Park trail start and finish?
The quest starts at Point Alpha: The Recruitment Hub in Cassiobury Park, Watford. The route loops back to finish at the same spot, so you end where you began. The app on your phone guides you from stop to stop along the way.
How long does it take and how far is the walk?
Plan on around 80 to 90 minutes to walk the 1.6 km route and solve the puzzles at each stop. You can pause at any point and continue later, so a snack or playground break will not cost you your progress.
Is it suitable for children?
Yes. It is rated easy and tagged family friendly, and it suits primary-school-age children best, especially those who enjoy spies, codes and WWII stories. The puzzles are solved in the real world using what is in front of you, around the canal, the river and Whippendell Woods.
Can we do it in bad weather?
It is an outdoor walk through the park, beside the canal and into Whippendell Woods, so dress for the weather. Do not attempt it when the river is high. Charge your phone fully or bring a power bank, as the app runs the whole route.
Do we need to book a time, and can our group play together?
No time slot is needed. Start whenever suits you, with no group or guide to meet. One ticket covers your whole group, up to the number of devices stated for the quest, so everyone can follow the story together.
