Explore Regent's Park 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 hours of exploring
Around 2.5 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.
Great detectives needed!
A mystery is waiting to be solved in
Regent's Park
For years, the Regent's Park has been the setting of many of Sir Ronan Foyle's famous crime novels. But during recent renovations at Overbeach, Foyle's former home, a shocking discovery was made - an unpublished manuscript entitled 'The Mystery of the Rambling Rose'.
Amateur sleuths and twin siblings, Ellie and Rudy Mentry, have now got their hands on the manuscript and believe it is based upon a real-life crime from The Regent's Park area. They've deduced that the rose in question was a poisonous bloom used to dispatch victims, but who could be behind this evil crime?
As Ellie and Rudy kept rambling on about the rose, their folks have grounded them. So they need YOU to examine the crime scene, identify the evidence and reveal whodunnit!
Detective Mystery Through Regent's Park - Queen Mary's Gardens
The game is afoot, daring detectives! Your self-guided mystery will have you following in the footsteps of The Great Detective as you set off from Baker Street station and enter The Regent's Park, where you will be hunting for clues, including some around Queen Mary's Gardens, before ending your investigation outside 221B Baker Street - the Sherlock Holmes Museum.
This case is a real page-turner…
During recent renovations at Overbeach, the former home of famous crime writer Sir Ronan Foyle, an old trunk was discovered within the walls. Inside was an unpublished manuscript entitled 'The Mystery of the Rambling Rose'. Amateur sleuths believe it's based upon a real-life crime from The Regent's Park area! Can YOU examine the crime scene, identify the evidence and reveal 'whodunnit'?!
Every clue brings you closer to the truth...
Piece together the evidence, identify the culprit and discover how the case ends.
Trail Information
Trail Information
Trail Location
The Regent's Park Treasure Trail starts at:
Marylebone Road
Marylebone
London
London
NW1 5LA
England
Trail Details:
- A self-guided detective mystery walking Trail around Regent’s Park.
- Ideal for kids aged 6 – 106!
- 2.5-mile ‘loop’ Trail (takes 2 hours to complete at your own pace).
- Text message service with clues if you get stuck.
- Learn more about where you live or explore somewhere new.
- Download your Trail now for INSTANT FUN (or receive your copy in the post)!
More Information:
Essential Intel
Please note: this Trail takes you into Queen Mary's Gardens, where unfortunately, dogs are not allowed.
Check park closing times before setting off. If York Bridge is closed during your investigation, follow the advised diversions.
Navigating The Route
This is a circular Detective Mystery around Regent's Park and Queen Mary's Gardens, with Detectives helping twin siblings Ellie and Rudy Mentry uncover the truth behind an unpublished manuscript and identify who used a poisonous rose in a real-life crime around Regent's Park.
The investigation covers 2.5 miles and should take 2+ hours to complete. You'll start outside Baker Street Underground station on Marylebone Road, then spend most of the case exploring Regent's Park and Queen Mary's Gardens before returning towards Baker Street.
This Trail is wheelchair accessible and pushchair accessible. The route is level, with some roads to cross and several bridges and paths around the lake.
Few roads are crossed, but take care when crossing, especially where there is no marked pedestrian crossing. Keep Mini Detectives close around the water, and be ready to follow diversions if the park bridge is closed.
Getting There
By car: The investigation begins outside Baker Street Underground station on Marylebone Road (NW1 5LD). Gather your Detectives there before setting off into Regent's Park.
By public transport: The Trail starts and ends at Baker Street Underground station. Head outside onto Marylebone Road to begin the case, and if you are ready to head back to base at the end, continue along Baker Street to return to the Underground station.
Need the Loo?
Public toilets can be found in Queen Mary's Gardens and at Clue 13. Both cost 20p, so keep a little change handy for your detective squad.
Bring Your Furry Sidekicks
Four-legged Detectives face one important restriction on this case: dogs are not allowed in Queen Mary's Gardens. 🐾
The route also includes roads to cross, bridges, lakeside paths and water nearby, so keep any canine companions close where they are able to join you, and plan ahead for the Queen Mary's Gardens section.
Food & Drink Stops
Evidence-gathering is hungry work. The Regent's Bar and Kitchen is passed after Clue 05, and The Boathouse Cafe is passed after Clue 14.
There are also shops and cafes near the start and end points, while most of the park is ideal for a picnic if your Detectives prefer to bring their own supplies.
Want to Make a Day of It?
Queen Mary's Gardens
Queen Mary's Gardens are at the heart of this floral whodunnit. First opened in 1932, with the rose garden following in 1934, they contain the largest collection of roses in London, with over 12,000 roses planted in 85 separate beds. In summer, keep an eye out for the Delphinium garden near the cafe and the Begonia beds too.
St John's Lodge Gardens
The peaceful gardens at St John's Lodge are open to the public, making them a calm optional extra during your park investigation. The Lodge itself is a private residence, built in 1818 as the second occupied villa in the park, and was used as a hospital for disabled officers in the First World War. The gardens include a Grade II listed sculpture.
The Regent's Park
The Regent's Park has a long trail of evidence behind it. The area was part of Tyburn Manor in the Middle Ages, became hunting ground for deer in 1539, passed to Oliver Cromwell in 1646, returned to Royal ownership with Charles II in 1660, and was redeveloped by architect John Nash from 1806. London Zoo was built in 1828, and the public were allowed into the park from 1835.
The Boating Lake
The route takes you around the lake, which is now off limits unless you are a duck or piloting a paddle-boat. It used to become a skating rink every winter, but after the ice cracked in 1867 and 200 people fell into the water, with 40 sadly not surviving, the lake was drained to a depth of just four feet.
The Sherlock Holmes Museum
If your Detectives want to continue the theme of their investigations, The Sherlock Holmes Museum is suggested as an extra stop. It makes a fitting encore after a mystery that begins and ends at Baker Street Underground station.
Mini Detective Club
Mini Detective 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?
