REVIEW · LONDON
London Sherlock Holmes: Crack the Case Walking Adventure
Book on Viator →Operated by Questo · Bookable on Viator
Crack the case without waiting for a guide. This app-based walking game turns 13 Sherlock Holmes puzzles into a reason to wander from BBC Broadcasting House all the way to Baker Street. I like that you can control your pace on your phone, pausing when you spot something worth a closer look, then hopping back into the story.
One possible drawback: when a puzzle is unclear (or when real-world details don’t match what the clue expects), you may spend extra time guessing or needing help from your group. That’s not rare for self-guided mystery games—London changes fast—so go in with a flexible mindset.
In This Review
- Key points before you start
- Why this Holmes case beats a standard London stroll
- Starting at BBC Broadcasting House: your first clue, your first test
- The Langham to Queen Anne Street: classic streets with puzzle momentum
- Harley Street to Upper Wimpole Street: where the brainwork stays light (until it doesn’t)
- University College Hospital and the Heart Hospital stop
- Chiltern Street to Sherlock Mews: small lanes, big “Sherlock” payoff
- Sherlock Holmes Statue to Baker Street tube station: you’re close now
- Ending at the Sherlock Holmes Museum: story finish, optional ticket
- How the puzzles feel in real life (and what to do if you get stuck)
- Price and timing: is $7.20 per person good value?
- Getting there and keeping the walk comfortable
- Who should book this Holmes walking adventure
- Should you book London Sherlock Holmes: Crack the Case?
- FAQ
- How much does London Sherlock Holmes: Crack the Case cost?
- How long does the experience take?
- What language is the experience offered in?
- Where does the adventure start and end?
- Is this a guided tour with a tour guide?
- Do I need entry tickets for the stops?
- What’s included in the experience?
- Is it private for my group?
- Can I cancel for a full refund?
Key points before you start

- 13 puzzle challenges built around Sherlock Holmes clues, not just sightseeing.
- Self-paced, app-based play with pause/resume so you set the rhythm.
- Free stop locations along the route (no entry fees needed to finish).
- No traditional guide—you’re the detective, your phone is your notebook.
- Ends at the Sherlock Holmes Museum, where entry is not included.
Why this Holmes case beats a standard London stroll

London has a million walking tours. This one adds a game layer that makes the streets feel like a map from a mystery novel. You’re not just moving from famous spot to famous spot—you’re solving small problems tied to places you’d otherwise skim past.
I also like how the “game” format nudges you toward specific addresses and details. Stops include classic corridors like Harley Street and quieter lanes like Sherlock Mews. If you enjoy noticing architecture, shopfronts, statues, and street geometry, the format gives you a reason to slow down.
The price is another reason it’s worth a look. At $7.20 per person, you’re paying for a 50-minute to 1 hour 20 minute self-guided experience with a storyline and 13 challenges, using only a mobile access code.
You can also read our reviews of more walking tours in London
Starting at BBC Broadcasting House: your first clue, your first test
You begin at BBC Broadcasting House (Portland Pl, London W1A 1AA). That matters because it puts the case on a real, central landmark right away. You’ll get the first clue there, which sets up the next part of the story and sends you toward the next stop.
Plan for a calm start. The opening clue is your baseline for how the puzzles will work, so take a minute to read carefully and make sure your phone/app is ready before you walk off.
This stop is listed as quick—about 5 minutes for the first handoff—and admission isn’t required to participate.
The Langham to Queen Anne Street: classic streets with puzzle momentum

Next you head to The Langham, London. This is a smooth “change of scenery” stop: grand hotel energy, easy walking lanes, and plenty of places to pause without feeling rushed. You’ll receive a new clue tied to the next challenge, and the game lets you explore while you work.
From there, you move to Queen Anne Street. The trick with Holmes-style clue routes is that you’ll often feel like you’re doing two things at once: walking normally and also scanning for the tiny detail that makes the answer snap into place. This section is ideal if you like that mix.
Both stops are designed with flexibility. Each one gives you clue time and then you can take your time, continue exploring, then move on when you’re ready.
Harley Street to Upper Wimpole Street: where the brainwork stays light (until it doesn’t)
Then comes Harley Street, famous for its medical associations and characterful streetscape. This is another clue drop point with the same self-paced setup: get the clue, then solve it at your own speed.
A short stretch later is Smile Time Dental Lab. This stop’s fun because it’s the kind of place tourists often walk right by. Here, it becomes part of the story world, which helps the route feel more “London-ish” instead of just a museum-on-a-map experience.
After that, you reach Upper Wimpole Street. By this point, you should have a feel for how the puzzles talk to you—some puzzles will feel like quick logic, and others may ask you to look harder.
University College Hospital and the Heart Hospital stop
Your route continues to University College Hospital at Westmoreland Street, also labeled The Heart Hospital. This is a meaningful shift: you’re moving through a working medical area, so keep your pace considerate and avoid lingering in ways that block entrances or staff movement.
The game gives you a new clue here. Since this is a high-traffic location, I recommend keeping your phone screen brightness reasonable and using brief bursts of attention for problem-solving while you walk.
Like the earlier stops, you’re not paying an entry fee just to keep playing.
Chiltern Street to Sherlock Mews: small lanes, big “Sherlock” payoff
Next you’ll reach Chiltern Street, then Sherlock Mews. If you like atmosphere, this is where the route starts feeling more like a detective’s stroll. Mews lanes tend to reward slow walking—there’s more shape and texture to see.
You’ll get a clue at each stop, and you can stop as long as you want and continue exploring before solving the next step.
Here’s a practical consideration. Some clue-based games can miss a direction detail if you reach a spot where street changes or construction alter what you expect to see. In the past, people have run into missing navigation between nearby stops and had to guess where the next clue was. So if something feels off, don’t panic—take a breath, re-check your directions in the app, and treat it like part of the mystery.
Sherlock Holmes Statue to Baker Street tube station: you’re close now

The next set of points brings you to the Sherlock Holmes Statue, then onward to Baker Street tube station. These are high-recognition locations, which is helpful because you’ll likely understand the “big picture” of where you are even if one puzzle slows you down.
By now, the walk-to-clue rhythm should be familiar: read clue, scan surroundings, solve, then move.
If you run into a harder puzzle here, it’s worth remembering that Sherlock themes can include counts, wordplay, and visual details. If anything in your view looks different from what the clue expects (for example, signage, covering, or visible details), you may need to interpret the clue more broadly rather than trying to force an exact match.
Ending at the Sherlock Holmes Museum: story finish, optional ticket

You finish at The Sherlock Holmes Museum, 221B Baker St, London NW1 6XE. Admission there is not included, so treat this as your “optional capstone.” You’ll wrap up both the story and the city exploration game at the museum finish point.
Even if you don’t plan to pay for entry, the end location is still a great payoff. Baker Street is one of those London streets where the myth and the geography match up, so the route lands you in a place that feels instantly recognizable.
How the puzzles feel in real life (and what to do if you get stuck)
This experience is built around 13 puzzle challenges, and the overall vibe is casual-detective rather than brain-melter. Many clues should read as solvable with normal attention and a bit of observation around the stop.
That said, one risk with self-guided puzzle routes is that a question can land weirdly, or a clue can be harder than expected. If you find yourself stuck, I suggest the “detective method”:
- Re-read the clue slowly and look for a single specific instruction (like count something, find a letter, identify a pattern).
- If the clue seems to conflict with what you see, try a second interpretation instead of forcing the first answer.
- Keep your group working in parallel—one person watches the street details while another reads the clue text.
Also, know that the provider has made fixes when real-world setup or clue details don’t match. If something appears broken—like missing directions or an answer that doesn’t line up—there’s a path to resolution rather than leaving you stranded with confusion.
Price and timing: is $7.20 per person good value?
For $7.20 per person, I’d call this a strong value if you want a walk with a plot. You’re paying for:
- A mobile access code and mobile ticket
- 13 puzzles
- A storyline inspired by Arthur Conan Doyle
- The ability to pause/resume anytime
Your time window is about 50 minutes to 1 hour 20 minutes, which makes it easy to fit between other London plans. It’s also booked ahead on average (about 15 days), which suggests it’s a popular format for people who like self-guided activities.
Where value can slip is if you’re a “no-mystery, only sights” type. If you hate puzzles or don’t enjoy scanning details, you may feel like you’re trading sightseeing time for problem-solving time. But if you like interactive walking, the price feels fair.
Getting there and keeping the walk comfortable
The route starts near public transportation and ends near a major hub at Baker Street tube station. That’s important because it makes it easy to start and finish without committing to an entire neighborhood day.
The activity is also listed as “private tour/activity,” meaning only your group participates. That matters if you don’t want to share your puzzle-solving space with strangers.
Duration is short, but you’re still walking. If you’re out in London for a full day already, this works best as a focused route you can enjoy without racing.
One more small comfort note: the experience allows service animals. If you travel with one, you should be fine.
Who should book this Holmes walking adventure
I think this is a great fit for:
- People who like interactive city games more than guided lectures.
- Sherlock Holmes fans who want to see the story geography in real London streets.
- Small groups who can work together on puzzles without feeling stuck for long.
It’s also a good option if you like control. The app-based format lets you take breaks, pause when you want photos or coffee, then continue when you’re ready.
If you’re traveling with very young kids, the puzzle complexity might be uneven—but the self-paced setup can still work if you’re happy to help.
Should you book London Sherlock Holmes: Crack the Case?
Book it if you want a short, affordable London walking experience with a clear route, a story thread, and enough puzzles to keep your brain switched on. The fact that you can pause/resume helps you avoid the common problem of “we have to keep moving.”
Skip or rethink it if you strongly prefer a traditional guide, or if puzzles frustrate you. Self-guided mystery games can occasionally feel unclear, and real-world details can change faster than any app screenshot.
My best advice: go in ready to be flexible. If you treat it like a cooperative hunt—your group against the clue text and street details—you’ll get far more out of it.
FAQ
How much does London Sherlock Holmes: Crack the Case cost?
It costs $7.20 per person.
How long does the experience take?
Plan for about 50 minutes to 1 hour 20 minutes.
What language is the experience offered in?
The experience is offered in English.
Where does the adventure start and end?
It starts at BBC Broadcasting House, Portland Pl, London W1A 1AA, and ends at The Sherlock Holmes Museum, 221B Baker St, London NW1 6XE.
Is this a guided tour with a tour guide?
No. It is an app-based walking adventure and does not include a tour guide.
Do I need entry tickets for the stops?
The stops along the way are listed as free for admission and are not needed to complete the tour. Entry to the Sherlock Holmes Museum is not included.
What’s included in the experience?
You get a mobile access code, 13 puzzle challenges, an Arthur Conan Doyle–inspired mystery storyline, and the ability to pause/resume.
Is it private for my group?
Yes. It’s listed as a private tour/activity, so only your group participates.
Can I cancel for a full refund?
Yes, free cancellation is available if you cancel at least 24 hours before the experience’s start time.



























