Explore Grantham Differently
Discover somewhere new - or rediscover somewhere you thought you knew.

- Follow a carefully planned self-guided route through the area
- Use real landmarks and features to crack around 18 clever clues
- Notice fascinating features you'd normally walk straight past
- Great fun for everyone from 6 to 106
- Around 2.5 hours of exploring
Around 2.4 miles of walking - One trail is perfect for up to 5 people
How it Works
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1. Choose how you want to explore
Use the App, print your Trail at home, or let us print and post it to you.
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2. Access it
instantlyYour App and PDF are ready immediately, whichever option you choose.
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3. Explore
& solveFollow the route and crack the sneaky clues along the way.
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4. Submit
your answerEnter your final
answer online to
reveal the ending.
Top secret!
We've got a mission for you in
Grantham
Dame Cassie Oldgram, the eccentric scientist, is up to no good again! She's fed up with everything being the right way round and has decided to turn the laws of gravity on their head. Her latest invention, an anti-gravity device, is hidden in St Wulfram's Church, and she plans to activate it at midnight tonight! It's up to YOU, our top secret agents, to stop her before it's too late.
Spy Mission Through Grantham
Embark on a thrilling spy mission through the charming town of Grantham with this self-guided Treasure Trail. Starting at the Market Place, you'll follow a circular route past Margaret Thatcher's birthplace and The King's School, before enjoying a scenic walk through the park and along the River Witham. Keep your eyes peeled for clues as you make your way back through the old streets to finish at the Guildhall.
With sneaky clues hidden in plain sight, only the most clever and daring agents will be able to crack the code and stop Dame Cassie's devious plan.
The town's fate is in your hands… Can YOU complete the mission and save Grantham from becoming Refuselamb?
Everything you've uncovered has led to this...
Use the intelligence you've gathered, crack the final challenge and bring the mission to a successful close.
Trail Information
Trail Information
Trail Location
The Grantham Treasure Trail starts at:
Saint Peter's Hill
Grantham
Lincolnshire
Lincolnshire
NG31 6QB
England
Trail Details:
- A Spy Mission themed walking Treasure Trail around Grantham
- Ideal for discovering more about where you live or exploring somewhere new
- Trails are done in your own time at your own pace
- This Trail is approximately 2.4 miles long and takes 2.5 hours to complete
- This Trail is suitable for all ages from 6 - 106 (no children necessary!)
- One Trail booklet is enough for 4-5 people
- Circular loop Trail
- Mobile phone text service for clue answers if you get stuck, ensuring that no mystery goes unsolved
- This Trail can be sent to you in the post or downloaded today for instant Trailing fun!
More Information:
Navigating The Route
This is a circular Spy Mission around Grantham Park & River Witham, with Agents sent around Grantham by Spy HQ to stop Dame Cassie Oldgram's anti-gravity plot before midnight by collecting clues that will crack the device's de-activation code.
The operation covers 2.4 miles and should take around 2.5 hours to complete. You'll start by the statue of Sir Isaac Newton on St Peter's Hill, investigate Grantham town centre and Market Place, move through old town streets including Guildhall Street and Westgate, head into St Wulfram's churchyard, continue through Wyndham Park, then follow the riverside path before looping back towards the town centre.
This Trail is wheelchair accessible and pushchair accessible. The route is along pavements and clear paths; some steps are included, but alternative step-free routes are pointed out. There are no steep hills.
Road crossings are required in a number of places, and the mission also goes past the boating lake and along the riverside path, so keep Mini Agents close around traffic and water.
Getting There
By car: Your mission begins at the statue of Sir Isaac Newton on the grassy area in the middle of St Peter's Hill outside the Guildhall Arts Centre and Grantham Museum (NG31 6QG). The recommended parking is Welham Street Pay & Display Car Park (NG31 6QQ), a 5 minute walk away.
By public transport: Make your way to the statue of Sir Isaac Newton on St Peter's Hill outside the Guildhall Arts Centre and Grantham Museum to begin the operation. The route is circular and finishes back in the town centre near the starting area.
Need the Loo?
Useful comfort-stop intel, Agents: toilets are available at Abbey Gardens near the start and end points, and at the Visitor Centre in Wyndham Park.
Bring Your Furry Sidekicks
Four-legged Agents are welcome to join the operation. 🐾
The route follows pavements and clear paths, with road crossings in a number of places, some steps with alternative step-free routes, and waterside sections past the boating lake and along the riverside path. Keep canine recruits close around traffic and water, especially in the busier town centre sections.
Food & Drink Stops
Anti-gravity plots are no place for under-fuelled Agents. Provisions can be picked up in the town centre at the start, and pub stops are highlighted along the way.
Wyndham Park, around Clues 09 to 11, is described as a great place to stop for a picnic, so pack supplies if your squad prefers an outdoor refuel during the mission.
Want to Make a Day of It?
Wyndham Park
Wyndham Park is a strong place to linger once the code-cracking pressure eases. It includes a visitor centre and was subject to a £1million refurbishment project to turn it into a World War One Memorial Park, with the work completed in 2018. The route marks it out as a good place to spend some time while you're there, and it is also the picnic highlight around Clues 09 to 11.
St Wulfram's Church
The mission takes you into the churchyard and around the front of St Wulfram's Church, where Dame Cassie is tangled into the storyline. Its tower and spire were built in 1300, when it was the tallest building in the country; when completed in 1450, the church was large enough to hold every person in the town. In 2020, it was voted the finest non-cathedral English church, which is exactly the sort of dramatic backdrop a supervillain would choose.
Grantham Town Centre and Market Place
Grantham's historic town centre is part of the mission from the start, including the Market Place, the Market Cross and the Ancient Curteis Plaque. The background intel traces the town from a medieval wool and leather town, to an important stagecoach stop in the 1700s, then to a major engineering town after the railway arrived in the mid-1800s.
Guildhall Arts Centre and Grantham Museum
The operation begins by the statue of Sir Isaac Newton outside the Guildhall Arts Centre and Grantham Museum on St Peter's Hill, and the route later comes back in front of the Guildhall and Museum area. It's a natural place to spend extra time before or after your agents have finished decoding Dame Cassie's dastardly plan.
The Old Bank and Old Town Streets
The Trail passes under the arches of The Old Bank before continuing through Guildhall Street and Westgate, making Grantham's old town streets part of the experience. Once the mission is complete, slow the pace and enjoy those historic streets without treating every suspicious archway as enemy infrastructure.
Mini Secret Agent Club
Mini Secret Agent Club
We have three super duper themed Clubs for your child to enjoy as part of their Treasure Trail experience.
Perfect for 4-8 year olds, the concept behind the Clubs is that your child will get a bundle of goodies to excite
them about their forthcoming Trail experience, something to keep them entertained whilst travelling to and from
the Trail, and something to be given on completion of the Trail as a keepsake.
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What is a Treasure Trail?
What is a Treasure Trail?
